diff options
| author | Alexandre Courbot <acourbot@nvidia.com> | 2016-04-13 05:55:29 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2016-04-15 09:44:02 +0100 |
| commit | 9c18fcf7ae0ef87f0723dfd74c27d608c7486e0e (patch) | |
| tree | 47e37ee905185e4b0021843cb7b1b2e483a035ce /Documentation | |
| parent | 208fae5c3b9431013ad7bcea07cbcee114e7d163 (diff) | |
ARM: 8551/2: DMA: Fix kzalloc flags in __dma_alloc
Commit 19e6e5e5392b ("ARM: 8547/1: dma-mapping: store buffer
information") allocates a structure meant for internal buffer management
with the GFP flags of the buffer itself. This can trigger the following
safeguard in the slab/slub allocator:
if (unlikely(flags & GFP_SLAB_BUG_MASK)) {
pr_emerg("gfp: %un", flags & GFP_SLAB_BUG_MASK);
BUG();
}
Fix this by filtering the flags that make the slab allocator unhappy.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'Documentation')