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gpio: just plain warning when nonexisting gpio requested

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When trying to export an nonexisting gpio ID, the kernel prints out a
big warning w/ stacktrace, sounding like a huge problem. In fact it's
a pretty normal situation, like file or device not found.

So, just print a more relaxed warning instead.

changes v2: drop defining pr_fmt()

Signed-off-by: Enrico Weigelt <info@metux.net>
Link: https://lore.kernel.org/r/20201202133754.32045-1-info@metux.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Enrico Weigelt 2020-12-02 14:37:54 +01:00 • committed by Linus Walleij
parent e0822cf9b8
commit c47d9e1b73
1 changed files with 2 additions and 1 deletions
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3
drivers/gpio/gpiolib.c
View file

@ -1,4 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/bitmap.h>
#include <linux/kernel.h>
#include <linux/module.h>
@ -119,7 +120,7 @@ struct gpio_desc *gpio_to_desc(unsigned gpio)
spin_unlock_irqrestore(&gpio_lock, flags);
if (!gpio_is_valid(gpio))
WARN(1, "invalid GPIO %d\n", gpio);
pr_warn("invalid GPIO %d\n", gpio);
return NULL;
}