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author | Bartosz Golaszewski <brgl@bgdev.pl> | 2017-06-23 11:45:16 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-07-05 12:40:18 (GMT) |
commit | 78c4244f8bdbf3cefa1e01bfcfe7a53bcc45c0f3 (patch) | |
tree | 0630a931b90a13481e0359421e2946c5591ed842 /drivers/gpio/gpio-htc-egpio.c | |
parent | cb2c6fdf620f4802c31d6577ff34391fdd949cc6 (diff) | |
download | linux-78c4244f8bdbf3cefa1e01bfcfe7a53bcc45c0f3.tar.xz |
gpiolib: fix filtering out unwanted events
commit ad537b822577fcc143325786cd6ad50d7b9df31c upstream.
GPIOEVENT_REQUEST_BOTH_EDGES is not a single flag, but a binary OR of
GPIOEVENT_REQUEST_RISING_EDGE and GPIOEVENT_REQUEST_FALLING_EDGE.
The expression 'le->eflags & GPIOEVENT_REQUEST_BOTH_EDGES' we'll get
evaluated to true even if only one event type was requested.
Fix it by checking both RISING & FALLING flags explicitly.
Fixes: 61f922db7221 ("gpio: userspace ABI for reading GPIO line events")
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpio/gpio-htc-egpio.c')
0 files changed, 0 insertions, 0 deletions