diff options
| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2014-01-16 15:39:17 +0100 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2014-02-11 09:40:05 +0100 |
| commit | 10c8562f932d89c030083e15f9279971ed637136 (patch) | |
| tree | ed8cab905c5cb39a743264d0079f4c42958c775d | |
| parent | b28a960c42fcd9cfc987441fa6d1c1a471f0f9ed (diff) | |
| download | linux-10c8562f932d89c030083e15f9279971ed637136.tar.bz2 | |
ARM: dma-mapping: fix GFP_ATOMIC macro usage
GFP_ATOMIC is not a single gfp flag, but a macro which expands to the other
flags and LACK of __GFP_WAIT flag. To check if caller wanted to perform an
atomic allocation, the code must test __GFP_WAIT flag presence. This patch
fixes the issue introduced in v3.6-rc5
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
CC: stable@vger.kernel.org
| -rw-r--r-- | arch/arm/mm/dma-mapping.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 1a77450e728a..11b3914660d2 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -1358,7 +1358,7 @@ static void *arm_iommu_alloc_attrs(struct device *dev, size_t size, *handle = DMA_ERROR_CODE; size = PAGE_ALIGN(size); - if (gfp & GFP_ATOMIC) + if (!(gfp & __GFP_WAIT)) return __iommu_alloc_atomic(dev, size, handle); /* |