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author | Viswas G <Viswas.G@pmcs.com> | 2015-08-11 15:06:28 +0530 |
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committer | James Bottomley <JBottomley@Odin.com> | 2015-08-26 17:11:01 -0700 |
commit | 3b700e341144f278b8248418991c086d09b7137b (patch) | |
tree | f8db9c17cd3532956b4d433ca22ccd3a987469d0 /kernel/dma.c | |
parent | 842784e0d15bc21b31ce69f8f3518a8cf86084e3 (diff) | |
download | linux-3b700e341144f278b8248418991c086d09b7137b.tar.gz |
pm80xx: Fix for Incorrect DMA Unmapping of SG List
In pm8001_ccb_task_free(), the dma unmapping is done based on ccb->n_elem value. This should be initialized to zero in the task_abort(). Otherwise, pm8001_ccb_task_free() will try for dma_unmap_sg() which is invalid for task abort and can lead to kernel crash. Changes From V1: None Signed-off-by: Viswas G <Viswas.G@pmcs.com> Reviewed-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'kernel/dma.c')
0 files changed, 0 insertions, 0 deletions