mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-29 13:53:33 +00:00
pwm: Fix out-of-bounds access in of_pwm_single_xlate()
With args->args_count == 2 args->args[2] is not defined. Actually the
flags are contained in args->args[1].
Fixes: 3ab7b6ac5d
("pwm: Introduce single-PWM of_xlate function")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/243908750d306e018a3d4bf2eb745d53ab50f663.1704835845.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
parent
678164a5f0
commit
a297d07b9a
1 changed files with 1 additions and 1 deletions
|
@ -152,7 +152,7 @@ of_pwm_single_xlate(struct pwm_chip *chip, const struct of_phandle_args *args)
|
||||||
pwm->args.period = args->args[0];
|
pwm->args.period = args->args[0];
|
||||||
pwm->args.polarity = PWM_POLARITY_NORMAL;
|
pwm->args.polarity = PWM_POLARITY_NORMAL;
|
||||||
|
|
||||||
if (args->args_count == 2 && args->args[2] & PWM_POLARITY_INVERTED)
|
if (args->args_count == 2 && args->args[1] & PWM_POLARITY_INVERTED)
|
||||||
pwm->args.polarity = PWM_POLARITY_INVERSED;
|
pwm->args.polarity = PWM_POLARITY_INVERSED;
|
||||||
|
|
||||||
return pwm;
|
return pwm;
|
||||||
|
|
Loading…
Reference in a new issue