diff options
| author | Linus Walleij | 2016-06-15 22:57:38 +0200 |
|---|---|---|
| committer | Richard Weinberger | 2016-06-23 00:29:30 +0200 |
| commit | 39243ee771666e02201ba89c1d76fdc28e9cf681 (patch) | |
| tree | c8a1f7b6d16eecada21a5df378667c11fc680122 /kernel/locking | |
| parent | 0b305ccc1b545d3389068ddc3548cbc877513b97 (diff) | |
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')
0 files changed, 0 insertions, 0 deletions