5.15-stable review patch. If anyone has any objections, please let me know.
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From: Salah Triki salah.triki@gmail.com
commit 43c0f6456f801181a80b73d95def0e0fd134e1cc upstream.
`devm_gpiod_get_optional()` may return non-NULL error pointer on failure. Check its return value using `IS_ERR()` and propagate the error if necessary.
Fixes: df6e71256c84 ("iio: pressure: bmp280: Explicitly mark GPIO optional") Signed-off-by: Salah Triki salah.triki@gmail.com Reviewed-by: David Lechner dlechner@baylibre.com Link: https://patch.msgid.link/20250818092740.545379-2-salah.triki@gmail.com Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/iio/pressure/bmp280-core.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
--- a/drivers/iio/pressure/bmp280-core.c +++ b/drivers/iio/pressure/bmp280-core.c @@ -1064,11 +1064,12 @@ int bmp280_common_probe(struct device *d
/* Bring chip out of reset if there is an assigned GPIO line */ gpiod = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(gpiod)) + return dev_err_probe(dev, PTR_ERR(gpiod), "failed to get reset GPIO\n"); + /* Deassert the signal */ - if (gpiod) { - dev_info(dev, "release reset\n"); - gpiod_set_value(gpiod, 0); - } + dev_info(dev, "release reset\n"); + gpiod_set_value(gpiod, 0);
data->regmap = regmap; ret = regmap_read(regmap, BMP280_REG_ID, &chip_id);