Messages in this thread Patch in this message | | | From | Arvind Yadav <> | Subject | [PATCH 1/2] Input: tegra-kbc: Handle return value of clk_prepare_enable. | Date | Tue, 1 Aug 2017 15:32:26 +0530 |
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clk_prepare_enable() can fail here and we must check its return value.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> --- drivers/input/keyboard/tegra-kbc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c index 0c07e10..edc1385 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); -- 1.9.1
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