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clk: tegra: fix __clk_lookup() return value checks

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In case of error, the function __clk_lookup() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should
be replaced with NULL test.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
This commit is contained in:
Wei Yongjun 2013-10-29 03:07:57 +01:00 committed by Peter De Schrijver
parent 8ba4b3b9cc
commit 62ce7cd62f
1 changed files with 4 additions and 4 deletions
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8
drivers/clk/tegra/clk-pll.c
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@ -1490,7 +1490,7 @@ struct clk *tegra_clk_register_pllxc(const char *name, const char *parent_name,
u32 val, val_iddq;
parent = __clk_lookup(parent_name);
if (IS_ERR(parent)) {
if (!parent) {
WARN(1, "parent clk %s of %s must be registered first\n",
name, parent_name);
return ERR_PTR(-EINVAL);
@ -1591,7 +1591,7 @@ struct clk *tegra_clk_register_pllm(const char *name, const char *parent_name,
return ERR_PTR(-EINVAL);
parent = __clk_lookup(parent_name);
if (IS_ERR(parent)) {
if (!parent) {
WARN(1, "parent clk %s of %s must be registered first\n",
name, parent_name);
return ERR_PTR(-EINVAL);
@ -1632,7 +1632,7 @@ struct clk *tegra_clk_register_pllc(const char *name, const char *parent_name,
return ERR_PTR(-EINVAL);
parent = __clk_lookup(parent_name);
if (IS_ERR(parent)) {
if (!parent) {
WARN(1, "parent clk %s of %s must be registered first\n",
name, parent_name);
return ERR_PTR(-EINVAL);
@ -1756,7 +1756,7 @@ struct clk *tegra_clk_register_pllss(const char *name, const char *parent_name,
return ERR_PTR(-EINVAL);
parent = __clk_lookup(parent_name);
if (IS_ERR(parent)) {
if (!parent) {
WARN(1, "parent clk %s of %s must be registered first\n",
name, parent_name);
return ERR_PTR(-EINVAL);