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| author |   Thierry Reding <thierry.reding@gmail.com> | 2016-01-21 15:04:59 +0100 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2016-01-21 15:04:59 +0100 |
| commit | ff01c944cfa939f3474c28d88223213494aedf0b (patch) | |
| tree | 8afb1372654d843dca5e0969ddfd58cb5bda7c3a /drivers/pwm | |
| parent | pwm: omap-dmtimer: Potential NULL dereference on error (diff) | |
| download | linux-dev-ff01c944cfa939f3474c28d88223213494aedf0b.tar.xz linux-dev-ff01c944cfa939f3474c28d88223213494aedf0b.zip | |
pwm: Mark all devices as "might sleep"
Commit d1cd21427747 ("pwm: Set enable state properly on failed call to
enable") introduced a mutex that is needed to protect internal state of
PWM devices. Since that mutex is acquired in pwm_set_polarity() and in
pwm_enable() and might potentially block, all PWM devices effectively
become "might sleep".
It's rather pointless to keep the .can_sleep field around, but given
that there are external users let's postpone the removal for the next
release cycle.
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index d24ca5f281b4..7831bc6b51dd 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -889,7 +889,7 @@ EXPORT_SYMBOL_GPL(devm_pwm_put); */ bool pwm_can_sleep(struct pwm_device *pwm) { - return pwm->chip->can_sleep; + return true; } EXPORT_SYMBOL_GPL(pwm_can_sleep); |