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| author | Alexandre Bounine | 2014-07-31 01:08:26 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2014-07-31 02:16:13 +0200 |
| commit | 0193ed8225e1a79ed64632106ec3cc81798cb13c (patch) | |
| tree | 130e54dc330c11d9e7baf1fe54f9cb84139f1a13 /mm/memory-failure.c | |
| parent | mm, thp: do not allow thp faults to avoid cpuset restrictions (diff) | |
| download | kernel-qcow2-linux-0193ed8225e1a79ed64632106ec3cc81798cb13c.tar.gz kernel-qcow2-linux-0193ed8225e1a79ed64632106ec3cc81798cb13c.tar.xz kernel-qcow2-linux-0193ed8225e1a79ed64632106ec3cc81798cb13c.zip | |
rapidio/tsi721_dma: fix failure to obtain transaction descriptor
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>
Cc: <stable@vger.kernel.org> [3.5+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory-failure.c')
0 files changed, 0 insertions, 0 deletions