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Input: tegra-kbc - handle return value of clk_prepare_enable 

clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Arvind Yadav 2017-08-31 11:35:29 -07:00 committed by Dmitry Torokhov
parent 9ee0a05588
commit 8a7f102c4b
1 changed files with 4 additions and 1 deletions
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5
drivers/input/keyboard/tegra-kbc.c
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@ -370,8 +370,11 @@ static int tegra_kbc_start(struct tegra_kbc *kbc)
{
unsigned int debounce_cnt;
u32 val = 0;
int ret;
clk_prepare_enable(kbc->clk);
ret = clk_prepare_enable(kbc->clk);
if (ret)
return ret;
/* Reset the KBC controller to clear all previous status.*/
reset_control_assert(kbc->rst);