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authorSebastian Ott <sebott@linux.vnet.ibm.com>2013-05-17 16:37:59 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2013-05-22 09:45:56 +0200
commitabd9a0c36028771a8f397f38bf79bfcf404f957f (patch)
tree4c05aa888c674b1caef7d3ef5afa7a53e4fb1d40 /arch
parent519fe2ecb755b875d9814cdda19778c2e88c6901 (diff)
s390/dma: do not call debug_dma after free
In dma_free_coherent call debug_dma_free_coherent before deallocating the memory to avoid a possible use after free. Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/include/asm/dma-mapping.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 9411db653ba..886ac7d4937 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -71,8 +71,8 @@ static inline void dma_free_coherent(struct device *dev, size_t size,
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
- dma_ops->free(dev, size, cpu_addr, dma_handle, NULL);
debug_dma_free_coherent(dev, size, cpu_addr, dma_handle);
+ dma_ops->free(dev, size, cpu_addr, dma_handle, NULL);
}
#endif /* _ASM_S390_DMA_MAPPING_H */