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Date: Mon, 29 Jul 2019 16:36:33 +0200 From: "Enrico Weigelt, metux IT consult" <info@...ux.net> To: linux-kernel@...r.kernel.org Cc: linus.walleij@...aro.org, bgolaszewski@...libre.com, linux-gpio@...r.kernel.org Subject: [PATCH] gpio: just plain warning when nonexisting gpio requested From: Enrico Weigelt <info@...ux.net> When trying to export an nonexisting gpio ID, the kernel prints outs 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. Signed-off-by: Enrico Weigelt <info@...ux.net> --- drivers/gpio/gpiolib.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 3ee99d0..06eeedd 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1,4 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/bitmap.h> #include <linux/kernel.h> #include <linux/module.h> @@ -121,7 +124,7 @@ 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; } -- 1.9.1
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