linux-kernel - [PATCH v1 1/7] gpiolib: Print actual error when descriptor contains an error pointer

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Message-ID: <20250415111124.1539366-2-andriy.shevchenko@linux.intel.com>
Date: Tue, 15 Apr 2025 14:10:00 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
	linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 1/7] 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.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/gpio/gpiolib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index eb94428af6c0..0089745b381f 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2445,7 +2445,7 @@ 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);
 	}
 
-- 
2.47.2