| Message ID | 20241107210155.1383802-1-zmw12306@gmail.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | net: rfkill: gpio: Add check for clk_enable() | expand |
On Thu, 2024-11-07 at 16:01 -0500, Mingwei Zheng wrote: > Add check for the return value of clk_enable() to catch the potential > expection. "exception"? but we don't have exceptions? "error"? johannes
diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c index c268c2b011f4..a87bb99231a6 100644 --- a/net/rfkill/rfkill-gpio.c +++ b/net/rfkill/rfkill-gpio.c @@ -31,9 +31,13 @@ struct rfkill_gpio_data { static int rfkill_gpio_set_power(void *data, bool blocked) { struct rfkill_gpio_data *rfkill = data; + int ret; - if (!blocked && !IS_ERR(rfkill->clk) && !rfkill->clk_enabled) - clk_enable(rfkill->clk); + if (!blocked && !IS_ERR(rfkill->clk) && !rfkill->clk_enabled) { + ret = clk_enable(rfkill->clk); + if (!ret) + return ret; + } gpiod_set_value_cansleep(rfkill->shutdown_gpio, !blocked); gpiod_set_value_cansleep(rfkill->reset_gpio, !blocked);
Add check for the return value of clk_enable() to catch the potential expection. Fixes: 7176ba23f8b5 ("net: rfkill: add generic gpio rfkill driver") Signed-off-by: Mingwei Zheng <zmw12306@gmail.com> Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com> --- net/rfkill/rfkill-gpio.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)