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authorMoritz Fischer <mdf@kernel.org>2019-09-03 19:35:07 -0700
committerMoritz Fischer <mdf@kernel.org>2019-09-03 19:35:07 -0700
commitaf9ca4b0bd0502bb134f18d394a613be371d2352 (patch)
tree37b1159d4456e223981dddde4795f2061c83d14c /drivers/pwm/core.c
parentcbb4a74478e9eef0f8ef437e95ef7645008988f7 (diff)
parent99097a214b0c15f7595ac8f2788662f3941c1992 (diff)
Merge branch 'char-misc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc into fpga-dfl-for-5.4
Diffstat (limited to 'drivers/pwm/core.c')
-rw-r--r--drivers/pwm/core.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index c3ab07ab31a9..8edfac17364e 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -882,8 +882,11 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id)
return of_pwm_get(dev, dev->of_node, con_id);
/* then lookup via ACPI */
- if (dev && is_acpi_node(dev->fwnode))
- return acpi_pwm_get(dev->fwnode);
+ if (dev && is_acpi_node(dev->fwnode)) {
+ pwm = acpi_pwm_get(dev->fwnode);
+ if (!IS_ERR(pwm) || PTR_ERR(pwm) != -ENOENT)
+ return pwm;
+ }
/*
* We look up the provider in the static table typically provided by