Commit Graph

576 Commits

Author SHA1 Message Date
Borislav Petkov 4d7963648f amd64_edac: Fix DIMMs per DCTs output
amd64_debug_display_dimm_sizes() reports the distribution of the DIMMs
on each DRAM controller and its chip select sizes. Thus, the last don't
have anything to do with whether we're running in ganged DCT mode or not
- their sizes don't change all of a sudden. Fix that by removing the
ganged-check and dump DCT0's config for DCT1 when in ganged mode since
they're identical.

Reported-and-tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-02-10 14:41:49 +01:00
Linus Torvalds 008d23e485 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits)
  Documentation/trace/events.txt: Remove obsolete sched_signal_send.
  writeback: fix global_dirty_limits comment runtime -> real-time
  ppc: fix comment typo singal -> signal
  drivers: fix comment typo diable -> disable.
  m68k: fix comment typo diable -> disable.
  wireless: comment typo fix diable -> disable.
  media: comment typo fix diable -> disable.
  remove doc for obsolete dynamic-printk kernel-parameter
  remove extraneous 'is' from Documentation/iostats.txt
  Fix spelling milisec -> ms in snd_ps3 module parameter description
  Fix spelling mistakes in comments
  Revert conflicting V4L changes
  i7core_edac: fix typos in comments
  mm/rmap.c: fix comment
  sound, ca0106: Fix assignment to 'channel'.
  hrtimer: fix a typo in comment
  init/Kconfig: fix typo
  anon_inodes: fix wrong function name in comment
  fix comment typos concerning "consistent"
  poll: fix a typo in comment
  ...

Fix up trivial conflicts in:
 - drivers/net/wireless/iwlwifi/iwl-core.c (moved to iwl-legacy.c)
 - fs/ext4/ext4.h

Also fix missed 'diabled' typo in drivers/net/bnx2x/bnx2x.h while at it.
2011-01-13 10:05:56 -08:00
Linus Torvalds 128283a47e Merge branch 'mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
* 'mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC, MCE: Fix NB error formatting
  EDAC, MCE: Use BIT_64() to eliminate warnings on 32-bit
  EDAC, MCE: Enable MCE decoding on F15h
  EDAC, MCE: Allow F15h bank 6 MCE injection
  EDAC, MCE: Shorten error report formatting
  EDAC, MCE: Overhaul error fields extraction macros
  EDAC, MCE: Add F15h FP MCE decoder
  EDAC, MCE: Add F15 EX MCE decoder
  EDAC, MCE: Add an F15h NB MCE decoder
  EDAC, MCE: No F15h LS MCE decoder
  EDAC, MCE: Add F15h CU MCE decoder
  EDAC, MCE: Add F15h IC MCE decoder
  EDAC, MCE: Add F15h DC MCE decoder
  EDAC, MCE: Select extended error code mask
2011-01-07 14:54:03 -08:00
Borislav Petkov 6d5db46687 EDAC, MCE: Fix NB error formatting
Minor formatting fixup since the information which core was associated
with the MCE is not always valid.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:54:26 +01:00
Randy Dunlap 50adbbd8a8 EDAC, MCE: Use BIT_64() to eliminate warnings on 32-bit
Building for X86_32 produces shift count warnings, so use BIT_64() to
eliminate the warnings.

drivers/edac/mce_amd.c:778: warning: left shift count >= width of type
drivers/edac/mce_amd.c:778: warning: left shift count >= width of type

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: bluesmoke-devel@lists.sourceforge.net
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:54:25 +01:00
Borislav Petkov bad11e0318 EDAC, MCE: Enable MCE decoding on F15h
Now that everything is inplace, enable MCE decoding on F15h. Make
initcall routine a bit more readable.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:54:24 +01:00
Borislav Petkov 1b07ca47ff EDAC, MCE: Allow F15h bank 6 MCE injection
F15h adds a sixth MCE bank: adjust bank number check in the injection
code.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:54:23 +01:00
Borislav Petkov fa7ae8cc8c EDAC, MCE: Shorten error report formatting
Shorten up MCi_STATUS flags and add BD's new deferred and poison types.
Also, simplify formatting.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:54:22 +01:00
Borislav Petkov 6245288232 EDAC, MCE: Overhaul error fields extraction macros
Make macro names shorter thus making code shorter and more clear.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:54:21 +01:00
Borislav Petkov b8f85c477b EDAC, MCE: Add F15h FP MCE decoder
Add decoder for FP MCEs.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:54:20 +01:00
Borislav Petkov 8259a7e572 EDAC, MCE: Add F15 EX MCE decoder
Integrate the single FIROB signature into an expanded table along with
the new BD MCE types.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:54:19 +01:00
Borislav Petkov 05cd667d66 EDAC, MCE: Add an F15h NB MCE decoder
by (almost) reusing the F10h one since the signatures are the same.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:54:18 +01:00
Borislav Petkov b18434cad1 EDAC, MCE: No F15h LS MCE decoder
F15h BD doesn't generate LS MCEs so warn about it.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:54:17 +01:00
Borislav Petkov 70fdb494aa EDAC, MCE: Add F15h CU MCE decoder
MCE bank 2 is redefined from a BU to a CU (Combined Unit) bank on F15h.
Add a decoder function for CU MCEs.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:54:16 +01:00
Borislav Petkov 86039cd401 EDAC, MCE: Add F15h IC MCE decoder
Add support for decoding F15h IC MCEs.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:54:15 +01:00
Borislav Petkov 25a4f8b059 EDAC, MCE: Add F15h DC MCE decoder
Add a decoder for F15h DC MCEs to support the new types of DC MCEs
introduced by the BD microarchitecture.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:54:14 +01:00
Borislav Petkov 2be64bfac7 EDAC, MCE: Select extended error code mask
F15h enlarges the extended error code of an MCE to a 5-bit field
(MCi_STATUS[20:16]). Add a mask variable which default 0xf is overridden
on F15h.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:54:12 +01:00
Borislav Petkov a135cef79a amd64_edac: Disable DRAM ECC injection on K8
K8 does not allow for an atomic RMW to a cacheline as F10h does so
disable the error injection interface for it.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:38:46 +01:00
Borislav Petkov 390944439f EDAC: Fixup scrubrate manipulation
Make the ->{get|set}_sdram_scrub_rate return the actual scrub rate
bandwidth it succeeded setting and remove superfluous arg pointer used
for that. A negative value returned still means that an error occurred
while setting the scrubrate. Document this for future reference.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:38:31 +01:00
Borislav Petkov 360b7f3c60 amd64_edac: Remove two-stage initialization
Now that all prerequisites are in place, drop the two-stage driver
instances initialization in favor of the following simple init sequence:

1. Probe PCI device: we only test ECC capabilities here and if none exit
early.

2. If the hw supports ECC and it is/can be enabled, we init the per-node
instance.

Remove "amd64_" prefix from static functions touched, while at it.

There actually should be no visible functional change resulting from
this patch.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:34:03 +01:00
Borislav Petkov 2299ef7114 amd64_edac: Check ECC capabilities initially
Rework the code to check the hardware ECC capabilities at PCI probing
time. We do all further initialization only if we actually can/have ECC
enabled.

While at it:
0. Fix function naming.
1. Simplify/clarify debug output.
2. Remove amd64_ prefix from the static functions
3. Reorganize code.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:34:02 +01:00
Borislav Petkov ae7bb7c679 amd64_edac: Carve out ECC-related hw settings
This is in preparation for the init path reorganization where we want
only to

1) test whether a particular node supports ECC
2) can it be enabled

and only then do the necessary allocation/initialization. For that,
we need to decouple the ECC settings of the node from the instance's
descriptor.

The should be no functional change introduced by this patch.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:34:00 +01:00
Borislav Petkov f1db274e1b amd64_edac: Remove PCI ECS enabling functions
PCI ECS is being enabled by default since 2.6.26 on AMD so this code is
just superfluous now, remove it.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:33:59 +01:00
Borislav Petkov 027dbd6f5d amd64_edac: Remove explicit Kconfig PCI dependency
AMD_NB pulls in the dependency on PCI. Clarify/fix help text while at it.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:33:58 +01:00
Borislav Petkov cc4d8860fc amd64_edac: Allocate driver instances dynamically
Remove static allocation in favor of dynamically allocating space for as
many driver instances as northbridges present on the system.

There should be no functional change resulting from this patch.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:33:57 +01:00
Borislav Petkov 24f9a7fe3f amd64_edac: Rework printk macros
Add a macro per printk level, shorten up error messages. Add relevant
information to KERN_INFO level. No functional change.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:33:56 +01:00
Borislav Petkov 8d5b5d9c7b amd64_edac: Rename CPU PCI devices
Rename variables representing PCI devices to their BKDG names for faster
search and shorter, clearer code.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:33:54 +01:00
Borislav Petkov b8cfa02f83 amd64_edac: Concentrate per-family init even more
Move the remaining per-family init code into the proper place and
simplify the rest of the initialization. Reorganize error handling in
amd64_init_one_instance().

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:33:53 +01:00
Borislav Petkov bbd0c1f675 amd64_edac: Cleanup the CPU PCI device reservation
Shorten code and clarify comments, return proper -E* values on error.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:33:52 +01:00
Borislav Petkov 0092b20d4c amd64_edac: Simplify CPU family detection
Concentrate CPU family detection in the per-family init function.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:33:51 +01:00
Borislav Petkov 395ae783b3 amd64_edac: Add per-family init function
Run a per-family init function which does all the settings based on
the family this driver instance is running on. Move the scrubrate
calculation in it and simplify code.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:33:50 +01:00
Borislav Petkov 9f56da0e3c amd64_edac: Use cached extended CPU model
... instead of computing it needlessly again.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:33:49 +01:00
Borislav Petkov 3ab0e7dc2e amd64_edac: Remove F11h support
F11h doesn't support DRAM ECC so whack it away.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-01-07 11:33:47 +01:00
Linus Torvalds 42cbd8efb0 Merge branch 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, cacheinfo: Cleanup L3 cache index disable support
  x86, amd-nb: Cleanup AMD northbridge caching code
  x86, amd-nb: Complete the rename of AMD NB and related code
2011-01-06 10:50:28 -08:00
David Sterba e7bf068aa3 i7core_edac: fix typos in comments
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-12-28 01:20:51 +01:00
Jiri Kosina 4b7bd36470 Merge branch 'master' into for-next
Conflicts:
	MAINTAINERS
	arch/arm/mach-omap2/pm24xx.c
	drivers/scsi/bfa/bfa_fcpim.c

Needed to update to apply fixes for which the old branch was too
outdated.
2010-12-22 18:57:02 +01:00
Borislav Petkov e726f3c368 amd64_edac: Fix interleaving check
When matching error address to the range contained by one memory node,
we're in valid range when node interleaving

1. is disabled, or
2. enabled and when the address bits we interleave on match the
interleave selector on this node (see the "Node Interleaving" section in
the BKDG for an enlightening example).

Thus, when we early-exit, we need to reverse the compound logic
statement properly.

Cc: <stable@kernel.org>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2010-12-08 19:52:54 +01:00
Andrei Konovalov 76f04f2591 EDAC: Correct MiB_TO_PAGES() macro
This corrects the misprint introduced when moving '#if
PAGE_SHIFT' from i7core_edac.c to edac_core.h (commit
e9144601d3)

Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Andrei Konovalov <akonovalov@mvista.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2010-12-08 19:52:53 +01:00
Borislav Petkov bb31b3122c EDAC: Fix workqueue-related crashes
00740c5854 changed edac_core to
un-/register a workqueue item only if a lowlevel driver supplies a
polling routine. Normally, when we remove a polling low-level driver, we
go and cancel all the queued work. However, the workqueue unreg happens
based on the ->op_state setting, and edac_mc_del_mc() sets this to
OP_OFFLINE _before_ we cancel the work item, leading to NULL ptr oops on
the workqueue list.

Fix it by putting the unreg stuff in proper order.

Cc: <stable@kernel.org> #36.x
Reported-and-tested-by: Tobias Karnat <tobias.karnat@googlemail.com>
LKML-Reference: <1291201307.3029.21.camel@Tobias-Karnat>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2010-12-08 19:52:27 +01:00
Axel Lin df4b2a30e0 EDAC, MCE: Fix edac_init_mce_inject error handling
Otherwise, variable i will be -1 inside the latest iteration of the
while loop.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2010-11-22 15:35:32 +01:00
Tracey Dent f570e1dd84 EDAC: Remove deprecated kbuild goal definitions
Change EDAC's Makefile to use <modules>-y instead of
<modules>-objs because -objs is deprecated and not mentioned in
Documentation/kbuild/makefiles.txt.

 [bp: Fixup commit message]
 [bp: Fixup indentation]

Signed-off-by: Tracey Dent <tdent48227@gmail.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2010-11-22 15:35:31 +01:00
Hans Rosenfeld 9653a5c76c x86, amd-nb: Cleanup AMD northbridge caching code
Support more than just the "Misc Control" part of the northbridges.
Support more flags by turning "gart_supported" into a single bit flag
that is stored in a flags member. Clean up related code by using a set
of functions (amd_nb_num(), amd_nb_has_feature() and node_to_amd_nb())
instead of accessing the NB data structures directly. Reorder the
initialization code and put the GART flush words caching in a separate
function.

Signed-off-by: Hans Rosenfeld <hans.rosenfeld@amd.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2010-11-18 15:53:05 +01:00
Hans Rosenfeld eec1d4fa00 x86, amd-nb: Complete the rename of AMD NB and related code
Not only the naming of the files was confusing, it was even more so for
the function and variable names.

Renamed the K8 NB and NUMA stuff that is also used on other AMD
platforms. This also renames the CONFIG_K8_NUMA option to
CONFIG_AMD_NUMA and the related file k8topology_64.c to
amdtopology_64.c. No functional changes intended.

Signed-off-by: Hans Rosenfeld <hans.rosenfeld@amd.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2010-11-18 15:53:04 +01:00
Uwe Kleine-König b595076a18 tree-wide: fix comment/printk typos
"gadget", "through", "command", "maintain", "maintain", "controller", "address",
"between", "initiali[zs]e", "instead", "function", "select", "already",
"equal", "access", "management", "hierarchy", "registration", "interest",
"relative", "memory", "offset", "already",

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-11-01 15:38:34 -04:00
Linus Torvalds da62aa69c1 Merge branch 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/i7core
* 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/i7core: (34 commits)
  i7core_edac: return -ENODEV when devices were already probed
  i7core_edac: properly terminate pci_dev_table
  i7core_edac: Avoid PCI refcount to reach zero on successive load/reload
  i7core_edac: Fix refcount error at PCI devices
  i7core_edac: it is safe to i7core_unregister_mci() when mci=NULL
  i7core_edac: Fix an oops at i7core probe
  i7core_edac: Remove unused member channels in i7core_pvt
  i7core_edac: Remove unused arg csrow from get_dimm_config
  i7core_edac: Reduce args of i7core_register_mci
  i7core_edac: Introduce i7core_unregister_mci
  i7core_edac: Use saved pointers
  i7core_edac: Check probe counter in i7core_remove
  i7core_edac: Call pci_dev_put() when alloc_i7core_dev()  failed
  i7core_edac: Fix error path of i7core_register_mci
  i7core_edac: Fix order of lines in i7core_register_mci
  i7core_edac: Always do get/put for all devices
  i7core_edac: Introduce i7core_pci_ctl_create/release
  i7core_edac: Introduce free_i7core_dev
  i7core_edac: Introduce alloc_i7core_dev
  i7core_edac: Reduce args of i7core_get_onedevice
  ...
2010-10-26 10:13:48 -07:00
Linus Torvalds 229aebb873 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
  Update broken web addresses in arch directory.
  Update broken web addresses in the kernel.
  Revert "drivers/usb: Remove unnecessary return's from void functions" for musb gadget
  Revert "Fix typo: configuation => configuration" partially
  ida: document IDA_BITMAP_LONGS calculation
  ext2: fix a typo on comment in ext2/inode.c
  drivers/scsi: Remove unnecessary casts of private_data
  drivers/s390: Remove unnecessary casts of private_data
  net/sunrpc/rpc_pipe.c: Remove unnecessary casts of private_data
  drivers/infiniband: Remove unnecessary casts of private_data
  drivers/gpu/drm: Remove unnecessary casts of private_data
  kernel/pm_qos_params.c: Remove unnecessary casts of private_data
  fs/ecryptfs: Remove unnecessary casts of private_data
  fs/seq_file.c: Remove unnecessary casts of private_data
  arm: uengine.c: remove C99 comments
  arm: scoop.c: remove C99 comments
  Fix typo configue => configure in comments
  Fix typo: configuation => configuration
  Fix typo interrest[ing|ed] => interest[ing|ed]
  Fix various typos of valid in comments
  ...

Fix up trivial conflicts in:
	drivers/char/ipmi/ipmi_si_intf.c
	drivers/usb/gadget/rndis.c
	net/irda/irnet/irnet_ppp.c
2010-10-24 13:41:39 -07:00
Linus Torvalds 8de547e182 Merge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/edac
* 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/edac: (25 commits)
  i7300_edac: Properly initialize per-csrow memory size
  V4L/DVB: i7300_edac: better initialize page counts
  MAINTAINERS: Add maintainer for i7300-edac driver
  i7300-edac: CodingStyle cleanup
  i7300_edac: Improve comments
  i7300_edac: Cleanup: reorganize the file contents
  i7300_edac: Properly detect channel on CE errors
  i7300_edac: enrich FBD error info for corrected errors
  i7300_edac: enrich FBD error info for fatal errors
  i7300_edac: pre-allocate a buffer used to prepare err messages
  i7300_edac: Fix MTR x4/x8 detection logic
  i7300_edac: Make the debug messages coherent with the others
  i7300_edac: Cleanup: remove get_error_info logic
  i7300_edac: Add a code to cleanup error registers
  i7300_edac: Add support for reporting FBD errors
  i7300_edac: Properly detect the type of error correction
  i7300_edac: Detect if the device is on single mode
  i7300_edac: Adds detection for enhanced scrub mode on x8
  i7300_edac: Clear the error bit after reading
  i7300_edac: Add error detection code for global errors
  ...
2010-10-24 13:06:57 -07:00
Mauro Carvalho Chehab 76a7bd8113 i7core_edac: return -ENODEV when devices were already probed
Due to the nature of i7core, we need to probe and attach all PCI
devices used by this driver during the first time probe is called.
However, PCI core will call the probe routine one time for each CPU
socket. If we return -EINVAL to those calls, it would seem that the
driver fails, when, in fact, there's no more devices left to initialize.

Changing the return code to -ENODEV solves this issue.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-24 11:36:19 -02:00
Mauro Carvalho Chehab 3c52cc57cc i7core_edac: properly terminate pci_dev_table
At pci_xeon_fixup(), it waits for a null-terminated table, while at
i7core_get_all_devices, it just do a for 0..ARRAY_SIZE. As other tables
are zero-terminated, change it to be terminate with 0 as well, and fixes
a bug where it may be running out of the table elements.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-24 11:31:50 -02:00
Mauro Carvalho Chehab a3e1541637 i7core_edac: Avoid PCI refcount to reach zero on successive load/reload
That's a nasty bug that took me a lot of time to track, and whose
solution took just one line to solve. The best fragrances and the worse
poisons are shipped on the smalest bottles.

The drivers/pci/quick.c implements the pci_get_device function. The normal
behavior is that you call it, the function returns you a pdev pointer
and increment pdev->kobj.kref.refcount of the pci device. However,
if you want to keep searching an object, you need to pass the previous
pdev function to the search.

When you use a not null pointer to pdev "from" field, pci_get_device
will decrement pdev->kobj.kref.refcount, assuming that the driver won't
be using the previous pdev.

The solution is simple: we just need to call pci_dev_get() manually,
for the pdev's that the driver will actually use.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-24 11:20:41 -02:00