From 8a7f102c4b15940e43b712d35da357a2c05ffb84 Mon Sep 17 00:00:00 2001 From: Arvind Yadav Date: Thu, 31 Aug 2017 11:35:29 -0700 Subject: 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 Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/tegra-kbc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c index 0c07e1023a46..edc1385ca00b 100644 --- a/drivers/input/keyboard/tegra-kbc.c +++ b/drivers/input/keyboard/tegra-kbc.c @@ -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); -- cgit v1.2.3-59-g8ed1b