ARM: dmabounce: check pointer against NULL not 0

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>
git-mirror · Jul 3, 2011 · dfa322f · dfa322f
1 parent e2f521e
commit dfa322f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
@@ -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++ );
 
 	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",
 		       __func__, ptr);
 		return ~0;