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authorChander Kashyap <chander.kashyap@linaro.org>2012-09-21 11:08:32 +0900
committerKukjin Kim <kgene.kim@samsung.com>2012-09-21 11:08:32 +0900
commit13acc291191281e2980e56dbe3a3d80ce677c9a8 (patch)
treefd8a56b1a37b45614c4cbd8dc7b5abe22301efc0 /arch/arm
parent377acfbbcfd4abecdf837350e2c2906cc0a0e001 (diff)
ARM: SAMSUNG: Add check for NULL in clock interface
The clock instance parameter in Samsung clock interface is not being checked for NULL pointers. Add checks for NULL pointers. Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org> Acked-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/plat-samsung/clock.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/arm/plat-samsung/clock.c b/arch/arm/plat-samsung/clock.c
index 65c5eca475e7..7938fbce825e 100644
--- a/arch/arm/plat-samsung/clock.c
+++ b/arch/arm/plat-samsung/clock.c
@@ -119,7 +119,7 @@ void clk_disable(struct clk *clk)
unsigned long clk_get_rate(struct clk *clk)
{
- if (IS_ERR(clk))
+ if (IS_ERR_OR_NULL(clk))
return 0;
if (clk->rate != 0)
@@ -136,7 +136,7 @@ unsigned long clk_get_rate(struct clk *clk)
long clk_round_rate(struct clk *clk, unsigned long rate)
{
- if (!IS_ERR(clk) && clk->ops && clk->ops->round_rate)
+ if (!IS_ERR_OR_NULL(clk) && clk->ops && clk->ops->round_rate)
return (clk->ops->round_rate)(clk, rate);
return rate;
@@ -146,7 +146,7 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
{
int ret;
- if (IS_ERR(clk))
+ if (IS_ERR_OR_NULL(clk))
return -EINVAL;
/* We do not default just do a clk->rate = rate as
@@ -175,7 +175,7 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
{
int ret = 0;
- if (IS_ERR(clk))
+ if (IS_ERR_OR_NULL(clk) || IS_ERR_OR_NULL(parent))
return -EINVAL;
spin_lock(&clocks_lock);