Commit Graph

33 Commits

Author SHA1 Message Date
Julia Lawall c60e55f30a Staging: Eliminate a NULL pointer dereference
Eliminate a NULL or near NULL pointer dereference.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
expression E,E1;
identifier f;
statement S1,S2,S3;
@@

if ((E == NULL && ...) || ...)
{
  ... when != if (...) S1 else S2
      when != E = E1
* E->f
  ... when any
  return ...;
}
else S3
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-04 13:38:57 -07:00
Greg Kroah-Hartman c8d1a12692 Merge staging-next tree into Linus's latest version
Conflicts:
	drivers/staging/arlan/arlan-main.c
	drivers/staging/comedi/drivers/cb_das16_cs.c
	drivers/staging/cx25821/cx25821-alsa.c
	drivers/staging/dt3155/dt3155_drv.c
	drivers/staging/hv/hv.c
	drivers/staging/netwave/netwave_cs.c
	drivers/staging/wavelan/wavelan.c
	drivers/staging/wavelan/wavelan_cs.c
	drivers/staging/wlags49_h2/wl_cs.c

This required a bit of hand merging due to the conflicts
that happened in the later .34-rc releases, as well as
some staging driver changing coming in through other trees
(v4l and pcmcia).

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-21 12:48:55 -07:00
Greg Kroah-Hartman e8afd402cc Staging: dt3155: remove "inline" usage
It was wrong, and not doing what anyone would think it would do.

Cc: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-11 11:35:41 -07:00
Greg Kroah-Hartman e802b4b79d Staging: dt3155: rename dt3155_fbuffer_s
drop the "_s" as it's not needed.

Cc: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-11 11:35:41 -07:00
Greg Kroah-Hartman 8b692e69c7 Staging: dt3155: rename dt3155_config_s
Drop the "_s", as it's not needed.

Now, dt3155.h is checkpatch.pl clean.

Cc: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-11 11:35:41 -07:00
Greg Kroah-Hartman 5019d2848c Staging: dt3155: remove dt3155_read_t
The typedef is not needed.

Cc: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-11 11:35:40 -07:00
Greg Kroah-Hartman 923c1244fc Staging: dt3155: remove dt3155_status_t
The typedef is not needed.

Cc: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-11 11:35:40 -07:00
Greg Kroah-Hartman 7f76c52fb0 Staging: dt3155: remove frame_info_t
The typedef is not needed.

Cc: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-11 11:35:40 -07:00
Greg Kroah-Hartman ffefea4711 Staging: dt3155: remove TRUE/FALSE
These aren't needed in the kernel, so remove them.

Cc: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-11 11:35:40 -07:00
Greg Kroah-Hartman e43a0edcb0 Staging: dt3155.h: remove #ifdef
We are in the kernel now, don't check to see if we are not.

Cc: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-11 11:35:40 -07:00
Joe Perches 7d4984d842 Staging: dt3155: allocator.c: sparse cleanups
Make prototypes match implementation
Use gfp_t flags not int prio

Still a couple of sparse warnings left

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Simon Horman <horms@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-11 11:35:40 -07:00
Jason Baldus d241fd58e4 Staging: dt3155: fix parentheses and bracket spacing style issues
This is a patch to the dt3155_drv.c file that removes spaces after open
parentheses and brackets and before close parentheses and brackets.

Signed-off-by: Jason Baldus <jason.baldus@gmail.com>
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-11 11:35:40 -07:00
Gorskin Ilya 484d3be1bd Staging: dt3155: fix coding style issue in dt3155_isr.c
This is a patch to the dt3155_isr.c file that fixes up a coding
style warning and errors found by the checkpatch.pl tool

Signed-off-by: Gorskin Ilya <revent82@gmail.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-11 11:35:40 -07:00
Arnd Bergmann b1f2ac0763 Staging: push down BKL into ioctl functions
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-11 11:35:36 -07:00
H Hartley Sweeten 59200df52c Staging: dt3155: fix wait_ibsyclr function
The wait_ibsyclr function is supposed to return the status of the I2C
cycle.  Currently it will always return FALSE because the IIC_CSR2
register is not re-read in order to update the cached register value.
This results in the NEW_CYCLE bit still being 1.

The current code actually works correctly only because the return
value of {Read|Write}I2C is not checked in the driver.

Fix wait_ibsyclr by actually reading the IIC_CSR2 register to get the
updated status.  While here, change the return type to be an actual
errno instead of the private TRUE/FALSE define and remove the now
obvious comments about the return value.

Also, remove the local variable 'writestat' in WriteI2C and just
return the result of wait_ibsyclr.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-11 11:35:36 -07:00
Huang Weiyi 773cde9a49 Staging: remove unused #include <linux/version.h>
Remove unused #include <linux/version.h>('s) in
  drivers/staging/dt3155/allocator.c
  drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
  drivers/staging/vme/boards/vme_vmivme7805.c

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-11 11:35:36 -07:00
H Hartley Sweeten 6536560cab Staging: dt3155: fix 50Hz configuration
According to the header file, dt3155_io.h, the 50/60 Hz configuration
is controlled by a bit in the I2C CSR2 register (bit 2).  The function
dt3155_init_isr actually reads the I2C CONFIG register into the global
I2C_CSR union variable then modifies the bit.  It then does a write
to the I2C CONFIG register with the global I2C_CONFIG union variable
which is not even set with a value anywhere in the driver.

My guess is 50Hz operation doesn't even work as-is.

Fix this by actually reading and writing the correct register with
the correct value.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Simon Horman <horms@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30 09:30:10 -07:00
Randy Dunlap 74a920139a staging: fix dt3155 build
When the dt3155 driver is built-in (not as a loadable module),
these build errors happen:

  drivers/staging/dt3155/dt3155_drv.c:1047: error: implicit declaration of function 'request_irq'
  drivers/staging/dt3155/dt3155_drv.c:1048: error: 'IRQF_SHARED' undeclared (first use in this function)
  drivers/staging/dt3155/dt3155_drv.c:1048: error: 'IRQF_DISABLED' undeclared (first use in this function)
  drivers/staging/dt3155/dt3155_drv.c:1091: error: implicit declaration of function 'free_irq'

so remove the #ifdef MODULE check since it's not needed.  Also remove
the CONFIG_PCI check since the Kconfig file already requires that.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Scott Smedley <ss@aao.gov.au>
Tested-by: Jan III Sobieski <jan3sobi3ski@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-22 07:20:00 -07:00
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
H Hartley Sweeten 3a8954e8f2 staging: dt3155: revert u_long to u64 usage
Commit 9c1390a923ddb6fba1cf9d7440743369140c6d8a replaced
all u_int's with u32 and u_long's with u64. Unfortunately, a u_long
is still only 32-bits so they should have been replaced with u32 also.

This can be verified by the register definitions in dt3155_io.h.  It
specifically states that the memory mapped registers are 32-bit.

Fix this by changing all the u64 to u32.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:43:07 -08:00
Greg Kroah-Hartman ef97e4ef15 Staging: dt3155: fix coding style issues in dt3155_io.c
This fixes up the sparse and coding style issues found in the
dt3155_io.c file.

No code is changed, only formatting and removing unused code.

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:56 -08:00
Greg Kroah-Hartman dcff74ce8b Staging: dt3155: replace u_int and u_long usage
Use u32 and u64 instead, that's the proper thing to do.

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:56 -08:00
Greg Kroah-Hartman 5d3921117d Staging: dt3155: replace u_char usage
Use u8 instead, that's the proper thing to do.

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:56 -08:00
Greg Kroah-Hartman 062d164719 Staging: dt3155: coding cleanups for dt3155_io.h
This fixes up some coding style issues in the dt3155_io.h file

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:56 -08:00
Greg Kroah-Hartman f721ad7a9c Staging: dt3155: fix build warnings
This fixes the build warnings in the dt3155 driver

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:56 -08:00
Simon Horman 2141ec629c Staging: dt3155: remove compat code
Remove compatibility code as this is not an older version of the kernel.

Signed-off-by: Simon Horman <horms@verge.net.au>
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:38 -08:00
Simon Horman 6910dadf3f Staging: DT3155: Use pci_get_device()
The use of pci_find_device() is deprecated.

Signed-off-by: Simon Horman <horms@verge.net.au>
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:37 -08:00
Greg Kroah-Hartman 8c6356e2a5 Staging: dt3155: coding style cleanups for the .h files
This cleans up some of the coding style issues in the .h files.

More remains to be done.

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:33 -08:00
Greg Kroah-Hartman 1769fd86e1 Staging: dt3155: coding style cleanups for allocator code
This fixes up the worst of the coding style errors for the
allocator code.

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:33 -08:00
Greg Kroah-Hartman 293c0db0dd Staging: dt3155: add it to the build
Now it will build with the rest of the kernel

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:31 -08:00
Greg Kroah-Hartman bad9f950c0 Staging: dt3155: add TODO file
Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:31 -08:00
Greg Kroah-Hartman ae7fd7b818 Staging: dt3155: add needed #include
This is needed so the code properly builds

Cc: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:31 -08:00
Scott Smedley aa337ef1fb Staging: add dt3155 driver
This is a driver for the DT3155 Digitizer

Signed-off-by: Scott Smedley <ss@aao.gov.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-03-03 16:42:31 -08:00