Commit 828ec7f8 authored by Matti Vaittinen's avatar Matti Vaittinen Committed by Bartosz Golaszewski
Browse files

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: default avatarMatti 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: default avatarBartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
parent 591cd656

drivers/gpio/gpio-bd72720.c

+2 −0
Original line number Diff line number Diff line
@@ -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);

}