| commit | ecfb6ce5c09ce1fbfde39418123d4fc8ab4b7985 | |
| author | Linus Walleij <linus.walleij@linaro.org> | |
| Mon, 30 May 2016 14:48:39 +0000 (30 16:48 +0200) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Fri, 24 Jun 2016 17:22:02 +0000 (24 10:22 -0700) | ||
| tree | ca7613ddc437a089ebcc9d2217426c447115a8ea | treesnapshot (tar.gz zip) |
| parent | 3a2ec1551c13f5a3e8a405bb92babc11c473fa7f | commitdiff |
gpio: bail out silently on NULL descriptors
commit 54d77198fdfbc4f0fe11b4252c1d9c97d51a3264 upstream.
In fdeb8e1547cb9dd39d5d7223b33f3565cf86c28e
("gpio: reflect base and ngpio into gpio_device")
assumed that GPIO descriptors are either valid or error
pointers, but gpiod_get_[index_]optional() actually return
NULL descriptors and then all subsequent calls should just
bail out.
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Fixes: fdeb8e1547cb ("gpio: reflect base and ngpio into gpio_device")
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 54d77198fdfbc4f0fe11b4252c1d9c97d51a3264 upstream.
In fdeb8e1547cb9dd39d5d7223b33f3565cf86c28e
("gpio: reflect base and ngpio into gpio_device")
assumed that GPIO descriptors are either valid or error
pointers, but gpiod_get_[index_]optional() actually return
NULL descriptors and then all subsequent calls should just
bail out.
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Fixes: fdeb8e1547cb ("gpio: reflect base and ngpio into gpio_device")
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| drivers/gpio/gpiolib.c | diffblobblamehistory |