From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Sun, 3 Jul 2011 22:54:34 +0000 (+0100)
Subject: ARM: dmabounce: check pointer against NULL not 0
X-Git-Tag: firefly_0821_release~3680^2~4950^2~1^2~5
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=dfa322fceb15227c07670c415e835d2dfa8a4307;p=firefly-linux-kernel-4.4.55.git

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>
---

diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index 0077c1b7d7ff..b4a8759e0fa4 100644
--- 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;