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| author | Arnd Bergmann <arnd@arndb.de> | 2017-01-25 23:22:36 +0100 |
|---|---|---|
| committer | Jacek Anaszewski <jacek.anaszewski@gmail.com> | 2017-01-26 21:16:38 +0100 |
| commit | cbe99c538d1776009e8710755bb6e726f7fffa9b (patch) | |
| tree | 1f69e468ff6b04db290b00fb9b3f8fdd43027a97 /drivers/leds | |
| parent | 4e552c8cb5bc9137e67e035bab8df6dddbca7384 (diff) | |
| download | linux-cbe99c538d1776009e8710755bb6e726f7fffa9b.tar.gz linux-cbe99c538d1776009e8710755bb6e726f7fffa9b.tar.bz2 linux-cbe99c538d1776009e8710755bb6e726f7fffa9b.zip | |
leds: ktd2692: avoid harmless maybe-uninitialized warning
gcc gets confused about the control flow in ktd2692_parse_dt(), causing
it to warn about what seems like a potential bug:
drivers/leds/leds-ktd2692.c: In function 'ktd2692_probe':
drivers/leds/leds-ktd2692.c:244:15: error: '*((void *)&led_cfg+8)' may be used uninitialized in this function [-Werror=maybe-uninitialized]
drivers/leds/leds-ktd2692.c:225:7: error: 'led_cfg.flash_max_microamp' may be used uninitialized in this function [-Werror=maybe-uninitialized]
drivers/leds/leds-ktd2692.c:232:3: error: 'led_cfg.movie_max_microamp' may be used uninitialized in this function [-Werror=maybe-uninitialized]
The code is fine, and slightly reworking it in an equivalent way lets
gcc figure that out too, which gets rid of the warning.
Fixes: 77e7915b15bb ("leds: ktd2692: Add missing of_node_put")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/leds-ktd2692.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/leds/leds-ktd2692.c b/drivers/leds/leds-ktd2692.c index bf23ba191ad0..45296aaca9da 100644 --- a/drivers/leds/leds-ktd2692.c +++ b/drivers/leds/leds-ktd2692.c @@ -270,15 +270,15 @@ static int ktd2692_parse_dt(struct ktd2692_context *led, struct device *dev, return -ENXIO; led->ctrl_gpio = devm_gpiod_get(dev, "ctrl", GPIOD_ASIS); - if (IS_ERR(led->ctrl_gpio)) { - ret = PTR_ERR(led->ctrl_gpio); + ret = PTR_ERR_OR_ZERO(led->ctrl_gpio); + if (ret) { dev_err(dev, "cannot get ctrl-gpios %d\n", ret); return ret; } led->aux_gpio = devm_gpiod_get(dev, "aux", GPIOD_ASIS); - if (IS_ERR(led->aux_gpio)) { - ret = PTR_ERR(led->aux_gpio); + ret = PTR_ERR_OR_ZERO(led->aux_gpio); + if (ret) { dev_err(dev, "cannot get aux-gpios %d\n", ret); return ret; } |