led: triggers: Fix a memory leak bug

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In led_trigger_set(), 'event' is allocated in kasprintf(). However, it is
not deallocated in the following execution if the label 'err_activate' or
'err_add_groups' is entered, leading to memory leaks. To fix this issue,
free 'event' before returning the error.

Fixes: 52c47742f7 ("leds: triggers: send uevent when changing triggers")
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>

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Wenwen Wang 2019-08-19 15:41:42 -05:00 • committed by Jacek Anaszewski

parent 3881a72f8d

commit 60e2dde1e9

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drivers/leds/led-triggers.c

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