Messages in this thread Patch in this message | | | From | Nathan Chancellor <> | Subject | [PATCH] pwm: img: Turn final 'else if' into 'else' in img_pwm_config | Date | Thu, 7 Mar 2019 15:36:28 -0700 |
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When building with -Wsometimes-uninitialized, Clang warns:
drivers/pwm/pwm-img.c:126:13: error: variable 'timebase' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized]
The final else if functions as an else; make that explicit so that Clang understands that timebase cannot be used uninitialized.
Link: https://github.com/ClangBuiltLinux/linux/issues/400 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> --- drivers/pwm/pwm-img.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pwm/pwm-img.c b/drivers/pwm/pwm-img.c index 815f5333bb8f..1cc5fbe1e1d3 100644 --- a/drivers/pwm/pwm-img.c +++ b/drivers/pwm/pwm-img.c @@ -123,7 +123,7 @@ static int img_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, } else if (mul <= max_timebase * 512) { div = PWM_CTRL_CFG_SUB_DIV0_DIV1; timebase = DIV_ROUND_UP(mul, 512); - } else if (mul > max_timebase * 512) { + } else { dev_err(chip->dev, "failed to configure timebase steps/divider value\n"); return -EINVAL; -- 2.21.0
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