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clk: simplify clk_core_get_parent_by_index() 

Drop the "if (!core->parents)" case and refactor the function a bit
because core->parents is always allocated.  (Strictly speaking, it is
ZERO_SIZE_PTR if core->num_parents == 0, but such a case is omitted
by the if-conditional above.)

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 19:23:01 +09:00 committed by Stephen Boyd
parent 176d11690b
commit 88cfbef2ac
1 changed files with 6 additions and 7 deletions
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13
drivers/clk/clk.c
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@ -350,13 +350,12 @@ static struct clk_core *clk_core_get_parent_by_index(struct clk_core *core,
{
if (!core || index >= core->num_parents)
return NULL;
else if (!core->parents)
return clk_core_lookup(core->parent_names[index]);
else if (!core->parents[index])
return core->parents[index] =
clk_core_lookup(core->parent_names[index]);
else
return core->parents[index];
if (!core->parents[index])
core->parents[index] =
clk_core_lookup(core->parent_names[index]);
return core->parents[index];
}
struct clk_hw *