[PATCH] arm64: a37xx: pinctrl: fix info->dev used but never set

[Quentin Schulz]

From: Quentin Schulz <quentin.schulz at cherry.de>

A bunch of code calls info->dev, mostly dev_* messages and devm_kzalloc.

The former can be passed a NULL device and _dev_printk handles this just
fine.
The latter ignores the dev argument whenever !CONFIG_IS_ENABLED(DEVRES)
which was true in most cases until we made CONFIG_DEVRES mandatory for
U-Boot proper in commit 217cf656e249 ("dm: core: Default to using DEVRES
outside of xPL"). Failing to set info->dev before it's used by
devm_kzalloc results in crashes, therefore let's set info->dev before it
can be used.

Reported-by: Ben Schneider <ben at bens.haus>
Closes: https://lore.kernel.org/u-boot/IRefanijM8fTzOXeGe-H5hmhRkm7pt4Q83BV6VcWKlWp0s4i8mYcONTQz-IVhvNWlGta4LtnfK7ti6gxlrqq8h8cotgG1S0Fs6_DviAHvyo=@bens.haus/
Fixes: 0871806629b5 ("pinctrl: armada-37xx: Add pin controller support for Armada 37xx")
Fixes: 217cf656e249 ("dm: core: Default to using DEVRES outside of xPL")
Signed-off-by: Quentin Schulz <quentin.schulz at cherry.de>
---
This was apparently tested by Ben[1] but it'd be nice if you could test
again and give your Tested-by as I do not own any board with such
pinctrl device.

[1] https://lore.kernel.org/u-boot/kaJS2I2TlB5214mKzY5xXgpgeJRX1riXHuO0FSKHKdxcmBCJrnYmp7s-ebQd7mIbJBd1_yubQEd2bxBUMcUK02KgDudVPXcBIdlIZRMTxF8=@bens.haus/
---
 drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index 884ed258d17..ea726b96f61 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -720,6 +720,8 @@ static int armada_37xx_pinctrl_probe(struct udevice *dev)
 		return -ENODEV;
 	}
 
+	info->dev = dev;
+
 	/*
 	 * we allocate functions for number of pins and hope there are
 	 * fewer unique functions than pins available

---
base-commit: 77a48fa272161df9b778ffc09af814eec11cddd2
change-id: 20260625-pinctrl-armada-37xx-devm-556d34da70a7

Best regards,
--  
Quentin Schulz <quentin.schulz at cherry.de>