From: Phil Reid <preid@electromag.com.au>
To: gnurou@gmail.com, linux-gpio@vger.kernel.org
Cc: Phil Reid <preid@electromag.com.au>
Subject: [PATCH 1/2] gpiolib: prevent fault 'Unable to handle kernel paging request at virtual address'
Date: Fri, 4 Dec 2015 17:06:24 +0800 [thread overview]
Message-ID: <1449219985-67261-2-git-send-email-preid@electromag.com.au> (raw)
In-Reply-To: <1449219985-67261-1-git-send-email-preid@electromag.com.au>
gpiod_request when gpio returns -EBUSY results in fault.
Changing to pr_warn fixes the problem.
Signed-off-by: Phil Reid <preid@electromag.com.au>
---
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 a18f00f..0ef01b8 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -961,7 +961,7 @@ int gpiod_request(struct gpio_desc *desc, const char *label)
done:
if (status)
- gpiod_dbg(desc, "%s: status %d\n", __func__, status);
+ pr_warn("%s: status %d\n", __func__, status);
return status;
}
--
1.8.3.1
next prev parent reply other threads:[~2015-12-04 9:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-04 9:06 [PATCH 0/2] fdsfsd Phil Reid
2015-12-04 9:06 ` Phil Reid [this message]
2015-12-04 9:06 ` [PATCH 2/2] gpio-pca953x: Add set_multiple to allow multiple bits to be set in one write Phil Reid
2015-12-04 9:21 ` [PATCH 0/2] gpiolib exception & gpio-pca953x set_multiple support Phil Reid
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