diff options
| author | Matti Vaittinen <mazziesaccount@gmail.com> | 2026-04-07 15:41:48 +0300 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> | 2026-04-08 09:14:42 +0200 |
| commit | 828ec7f803f41588a120e6d804297e74a482ab9d (patch) | |
| tree | a62e46130d23ba57ef3adf876ee93fd8cdb21fb5 /drivers | |
| parent | 591cd656a1bf5ea94a222af5ef2ee76df029c1d2 (diff) | |
gpio: bd72720: handle missing regmap
Currently the probe does not check whether getting the regmap succeeded.
This can cause crash when regmap is used, if it wasn't successfully
obtained. Failing to get the regmap is unlikely, especially since this
driver is expected to be kicked by the MFD driver only after registering
the regmap - but it is still better to handle this gracefully.
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Fixes: e7eef0bd4075 ("regulator: bd71828-regulator.c: Fix LDON-HEAD mode")
Link: https://patch.msgid.link/5bfffee380863bcf24f3062e48094c8eb7b1342f.1775565381.git.mazziesaccount@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpio/gpio-bd72720.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-bd72720.c b/drivers/gpio/gpio-bd72720.c index 6549dbf4c7ad..d0f936ed80af 100644 --- a/drivers/gpio/gpio-bd72720.c +++ b/drivers/gpio/gpio-bd72720.c @@ -256,6 +256,8 @@ static int gpo_bd72720_probe(struct platform_device *pdev) g->dev = dev; g->chip.parent = parent; g->regmap = dev_get_regmap(parent, NULL); + if (!g->regmap) + return -ENODEV; return devm_gpiochip_add_data(dev, &g->chip, g); } |