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(parent: 870ce49) | patch
dmaengine: ioatdma: fix u16 overflow in cleanup
authorAllen Hubbe <Allen.Hubbe@emc.com>
Tue, 11 Aug 2015 08:05:43 +0000 (04:05 -0400)
committerVinod Koul <vinod.koul@intel.com>
Mon, 17 Aug 2015 08:05:58 +0000 (13:35 +0530)
commit5484526ac120eb543e5a28610775f04014814d89
tree19f4a05f497e8e5a0be74d08aa3140e960aeda14tree | snapshot
parent870ce49022d1a278e441d2cb7b92acae2416b510commit | diff
dmaengine: ioatdma: fix u16 overflow in cleanup

If the allocation order is 16, then the u16 count will overflow and wrap
to zero when assigned the value 1 << 16.

Change the type of 'total_descs' to int, so that it is large enough to
store a value equal or greater than 1 << 16.

Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
drivers/dma/ioat/dma_v2.c diff | blob | history
Domain: System / Kernel;