pwm: Don't check pointer for being non-NULL after use

After assigning chip = pwm->chip; the compiler is free to assume that
pwm is non-NULL and so can optimize out the check for pwm against NULL.

While it's probably a programming error to pass a NULL pointer to
pwm_put() this shouldn't be dropped without careful consideration and
wasn't intended.

So assign chip only after the NULL check.

Reported-by: David Lechner <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Fixes: 4c56b1434b81 ("pwm: Add a struct device to struct pwm_chip")
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: David Lechner <[email protected]>
Signed-off-by: Uwe Kleine-König <[email protected]>

0 files changed, 0 insertions, 0 deletions