Alexandre Bounine 9af29151ca rapidio/tsi721_dma: fix failure to obtain transaction descriptor ... commit 0193ed8225 upstream. This is a bug fix for the situation when function tsi721_desc_get() fails to obtain a free transaction descriptor. The bug usually results in a memory access crash dump when data transfer scatter-gather list has more entries than size of hardware buffer descriptors ring. This fix ensures that error is properly returned to a caller instead of an invalid entry. This patch is applicable to kernel versions starting from v3.5. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com> Cc: Stef van Os <stef.van.os@prodrive-technologies.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-08-07 14:52:37 -07:00
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devices	rapidio/tsi721_dma: fix failure to obtain transaction descriptor	2014-08-07 14:52:37 -07:00
switches	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2013-07-13 14:52:21 -07:00
Kconfig	rapidio: convert switch drivers to modules	2013-07-03 16:08:04 -07:00
Makefile	rapidio: add modular build option for the subsystem core	2013-07-03 16:08:05 -07:00
rio-access.c	[RAPIDIO] Add RapidIO multi mport support	2008-04-29 19:40:28 +10:00
rio-driver.c	rapidio: convert bus code to use dev_groups	2013-10-16 18:36:03 -07:00
rio-scan.c	rapidio: change endpoint device name format	2013-07-03 16:08:05 -07:00
rio-sysfs.c	rapidio: convert bus code to use dev_groups	2013-10-16 18:36:03 -07:00
rio.c	rapidio: fix use after free in rio_unregister_scan()	2013-07-31 14:41:02 -07:00
rio.h	rapidio: convert bus code to use dev_groups	2013-10-16 18:36:03 -07:00