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ARM: dmabounce: check pointer against NULL not 0

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Pointers should be checked against NULL rather than 0, otherwise we
get sparse warnings.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2011-07-03 23:54:34 +01:00
parent e2f521e247
commit dfa322fceb
1 changed files with 1 additions and 1 deletions
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2
arch/arm/common/dmabounce.c
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@ -249,7 +249,7 @@ static inline dma_addr_t map_single(struct device *dev, void *ptr, size_t size,
DO_STATS ( device_info->map_op_count++ ); DO_STATS ( device_info->map_op_count++ );
buf = alloc_safe_buffer(device_info, ptr, size, dir); buf = alloc_safe_buffer(device_info, ptr, size, dir);
if (buf == 0) { if (buf == NULL) {
dev_err(dev, "%s: unable to map unsafe buffer %p!\n", dev_err(dev, "%s: unable to map unsafe buffer %p!\n",
__func__, ptr); __func__, ptr);
return ~0; return ~0;