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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2015-05-18 23:45:07 +0300
committerSebastian Reichel <sre@kernel.org>2015-05-23 21:03:42 +0300
commit9f6cd98fc3c64ebcebf63c04f16246f79bcc4c70 (patch)
tree96e10c579bd7564657ddb66d5f1977574c0548e2 /drivers/power/reset/ltc2952-poweroff.c
parenta34c0a8bf8caae7a82de08dbcca2c7c11907c805 (diff)
downloadlinux-9f6cd98fc3c64ebcebf63c04f16246f79bcc4c70.tar.xz
power: reset: ltc2952: use _optional variant of devm_gpiod_get
devm_gpiod_get_optional returns NULL if devm_gpiod_get would return an ENOENT error pointer. There is no semantic change intended. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sebastian Reichel <sre@kernel.org>
Diffstat (limited to 'drivers/power/reset/ltc2952-poweroff.c')
-rw-r--r--drivers/power/reset/ltc2952-poweroff.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/power/reset/ltc2952-poweroff.c b/drivers/power/reset/ltc2952-poweroff.c
index 1e08195551fe..62c91acd6584 100644
--- a/drivers/power/reset/ltc2952-poweroff.c
+++ b/drivers/power/reset/ltc2952-poweroff.c
@@ -202,16 +202,15 @@ static int ltc2952_poweroff_init(struct platform_device *pdev)
return ret;
}
- data->gpio_trigger = devm_gpiod_get(&pdev->dev, "trigger", GPIOD_IN);
+ data->gpio_trigger = devm_gpiod_get_optional(&pdev->dev, "trigger",
+ GPIOD_IN);
if (IS_ERR(data->gpio_trigger)) {
/*
* It's not a problem if the trigger gpio isn't available, but
* it is worth a warning if its use was defined in the device
* tree.
*/
- if (PTR_ERR(data->gpio_trigger) != -ENOENT)
- dev_err(&pdev->dev,
- "unable to claim gpio \"trigger\"\n");
+ dev_err(&pdev->dev, "unable to claim gpio \"trigger\"\n");
data->gpio_trigger = NULL;
}