From: Thierry Reding Date: Mon, 5 Oct 2015 12:38:32 +0000 (+0200) Subject: pwm: Return -ENODEV if no PWM lookup match is found X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=655a03554cbdf73e8114367441f10858baac59bf;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git pwm: Return -ENODEV if no PWM lookup match is found When looking up a PWM using the lookup table, assume that all entries will have been added already, so failure to find a match means that no corresponding entry has been registered. This fixes an issue where -EPROBE_DEFER would be returned if the PWM lookup table is empty. After this fix, -EPROBE_DEFER is reserved for situations where no provider has yet registered for a matching entry. Signed-off-by: Thierry Reding --- diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index b8f6c309c160..d24ca5f281b4 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -738,8 +738,10 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id) } } - if (!chosen) + if (!chosen) { + pwm = ERR_PTR(-ENODEV); goto out; + } chip = pwmchip_find_by_name(chosen->provider); if (!chip)