diff options
| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2014-01-16 15:39:17 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-06 22:06:07 -0800 |
| commit | 8a6c4cd9a085da3ff617b6cfde5c221bfb2c0f83 (patch) | |
| tree | 02e1e8b44a1f7784be55dd160330ec8c76c2997e /arch | |
| parent | 1883d769bbf9701b7f93ac8d5e8a44612aa894f9 (diff) | |
ARM: dma-mapping: fix GFP_ATOMIC macro usage
commit 10c8562f932d89c030083e15f9279971ed637136 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -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 f61a5707823a..5fe4d72705d8 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); /* |