[PATCH 1/2] Input: tegra-kbc: Handle return value of clk_prepare_enable.
From: Arvind Yadav <hidden>
Date: 2017-08-01 10:02:45
Also in:
linux-tegra, lkml
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, tegra kbc driver, the rest · Maintainers:
Dmitry Torokhov, Laxman Dewangan, Linus Torvalds
clk_prepare_enable() can fail here and we must check its return value. Signed-off-by: Arvind Yadav <redacted> --- 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