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authorJavier Martinez Canillas <javier.martinez@collabora.co.uk>2014-07-19 03:21:47 +0200
committerVinod Koul <vinod.koul@intel.com>2014-07-22 21:38:43 +0530
commitb1e51d771fbc9fec15785760a2f725040a0fe671 (patch)
treee16653425118d99fb375d7d6209ecf1d624bcbb7 /crypto/cast5_generic.c
parentff4d02419ada5f2f174c646c58c5d07ddcf59de5 (diff)
downloadlinux-b1e51d771fbc9fec15785760a2f725040a0fe671.tar.bz2
dmaengine: pl330: Check if the DMA descriptor is NULL
Commit 6079d38 ("dmaengine: pl330: Remove useless xfer_cb indirection") removed the __callback() function which created an unnecessary level of indirection to execute the tranfer callback .xfer_cb Unfortunately the commit also changed the semantics slightly since that function used to check if the request was not NULL before attempting to execute the callback function. Not checking this could lead to a kernel NULL pointer dereference error. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'crypto/cast5_generic.c')
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