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| author | Linus Walleij <linus.walleij@linaro.org> | 2016-06-15 23:57:38 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-06-17 19:12:07 +0300 |
| commit | 79bb71bd1d93197ce227fa167b450b633f30a52b (patch) | |
| tree | bf2edaee0bd70d92406b10e15d82ef80ea248389 /kernel/locking/mutex-debug.c | |
| parent | 053ae6499a5634c0dc5fa18437e1af3d2f2ec98e (diff) | |
| download | linux-79bb71bd1d93197ce227fa167b450b633f30a52b.tar.xz | |
gpio: make sure gpiod_to_irq() returns negative on NULL desc
commit 54d77198fdfbc4f0fe11b4252c1d9c97d51a3264
("gpio: bail out silently on NULL descriptors")
doesn't work for gpiod_to_irq(): drivers assume that NULL
descriptors will give negative IRQ numbers in return.
It has been pointed out that returning 0 is NO_IRQ and that
drivers should be amended to treat this as an error, but that
is for the longer term: now let us repair the semantics.
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Reported-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'kernel/locking/mutex-debug.c')
0 files changed, 0 insertions, 0 deletions