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| author | Paul Zimmerman <Paul.Zimmerman@synopsys.com> | 2011-02-12 14:07:57 -0800 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2011-02-20 07:01:28 -0800 |
| commit | bcd2fde05341cef0052e49566ec88b406a521cf3 (patch) | |
| tree | e2d101797ba072dea57c465b47b2892e7e4a19a3 /drivers/usb/core/hub.c | |
| parent | 5807795bd4dececdf553719cc02869e633395787 (diff) | |
| download | op-kernel-dev-bcd2fde05341cef0052e49566ec88b406a521cf3.zip op-kernel-dev-bcd2fde05341cef0052e49566ec88b406a521cf3.tar.gz | |
xhci: Fix an error in count_sg_trbs_needed()
The expression
while (running_total < sg_dma_len(sg))
does not take into account that the remaining data length can be less
than sg_dma_len(sg). In that case, running_total can end up being
greater than the total data length, so an extra TRB is counted.
Changing the expression to
while (running_total < sg_dma_len(sg) && running_total < temp)
fixes that.
This patch should be queued for stable kernels back to 2.6.31.
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
Diffstat (limited to 'drivers/usb/core/hub.c')
0 files changed, 0 insertions, 0 deletions
