hwmon: (nzxt-smart2) handle failure of devm_add_action in nzxt_smart2_hid_probe

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1. replace the devm_add_action with devm_add_action_or_reset to ensure
the mutex lock can be destroyed when it fails.
2. use local wrapper function mutex_fini instead of mutex_destroy to
avoid undefined behaviours.
3. add a check of devm_add_action_or_reset and return early when it fails.

Link: https://lore.kernel.org/all/f5043281-9b3e-e454-16fe-ef4cde36dfdb@roeck-us.net
Signed-off-by: Kang Chen <void0red@gmail.com>
Link: https://lore.kernel.org/r/20230227091534.907101-1-void0red@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

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Kang Chen 2023-02-27 17:15:34 +08:00 • committed by Guenter Roeck

parent 37ef30fbf2

commit dbfeafdad3

1 changed files with 8 additions and 2 deletions

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drivers/hwmon/nzxt-smart2.c

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