From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Wed, 16 Apr 2025 09:55:11 +0000 (+0300)
Subject: gpiolib: Print actual error when descriptor contains an error pointer
X-Git-Tag: v6.16-rc1~169^2~58
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b709d676c1029458261121da6ccf65ecbb56f73c;p=thirdparty%2Fkernel%2Flinux.git

gpiolib: Print actual error when descriptor contains an error pointer

Print the actual error when descriptor contains an error pointer.
This might help debugging those rare cases.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250416095645.2027695-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
---

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index e2716e20b0e47..e8e75da7b1770 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2443,7 +2443,7 @@ static int validate_desc(const struct gpio_desc *desc, const char *func)
 		return 0;
 
 	if (IS_ERR(desc)) {
-		pr_warn("%s: invalid GPIO (errorpointer)\n", func);
+		pr_warn("%s: invalid GPIO (errorpointer: %pe)\n", func, desc);
 		return PTR_ERR(desc);
 	}