From: "Enrico Weigelt, metux IT consult" <info@metux.net>
To: linux-kernel@vger.kernel.org
Cc: linus.walleij@linaro.org, bgolaszewski@baylibre.com,
linux-gpio@vger.kernel.org
Subject: [PATCH v2] gpio: just plain warning when nonexisting gpio requested
Date: Wed, 2 Dec 2020 14:37:54 +0100 [thread overview]
Message-ID: <20201202133754.32045-1-info@metux.net> (raw)
From: Enrico Weigelt <info@metux.net>
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>
---
drivers/gpio/gpiolib.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 089ddcaa9bc6..6639e7b77d6c 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -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;
}
--
2.11.0
next reply other threads:[~2020-12-02 13:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-02 13:37 Enrico Weigelt, metux IT consult [this message]
2020-12-05 22:29 ` [PATCH v2] gpio: just plain warning when nonexisting gpio requested Linus Walleij
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20201202133754.32045-1-info@metux.net \
--to=info@metux.net \
--cc=bgolaszewski@baylibre.com \
--cc=linus.walleij@linaro.org \
--cc=linux-gpio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).