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rk30: clock: clk_get_parent return error when clk invalid

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黄涛 2012-05-07 20:11:36 +08:00
parent 03ff0147bd
commit fd8103d56a
1 changed files with 3 additions and 0 deletions
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3
arch/arm/mach-rk30/clock.c
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@ -445,6 +445,9 @@ struct clk *rk30_clk_get_parent(struct clk *clk)
struct clk *clk_get_parent(struct clk *clk)
#endif
{
if (clk == NULL || IS_ERR(clk)) {
return ERR_PTR(-EINVAL);
}
return clk->parent;
}