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clk: slightly optimize clk_core_set_parent() 

If clk_fetch_parent_index() fails, p_rate is unused.  Move the
assignment after the error checking.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This commit is contained in:
Masahiro Yamada 2015-12-28 19:23:10 +09:00 committed by Stephen Boyd
parent 470b5e2f97
commit e8f0e68ec0
1 changed files with 1 additions and 1 deletions
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2
drivers/clk/clk.c
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@ -1748,13 +1748,13 @@ static int clk_core_set_parent(struct clk_core *core, struct clk_core *parent)
/* try finding the new parent index */
if (parent) {
p_index = clk_fetch_parent_index(core, parent);
p_rate = parent->rate;
if (p_index < 0) {
pr_debug("%s: clk %s can not be parent of clk %s\n",
__func__, parent->name, core->name);
ret = p_index;
goto out;
}
p_rate = parent->rate;
}
/* propagate PRE_RATE_CHANGE notifications */