watchdog: at91sam9_wdt: use devm_request_irq to avoid missing free_irq() in error path

stable inclusion
from stable-v5.10.173
commit 273559f58f71512e4be929b78d4e05f60d48a60c
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7X0QU

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=273559f58f71512e4be929b78d4e05f60d48a60c



--------------------------------

[ Upstream commit 07bec0e0 ]

free_irq() is missing in case of error in at91_wdt_init(), use
devm_request_irq to fix that.

Fixes: 5161b31d ("watchdog: at91sam9_wdt: better watchdog support")
Signed-off-by: ruanjinjie <ruanjinjie@huawei.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20221116094950.3141943-1-ruanjinjie@huawei.com


[groeck: Adjust multi-line alignment]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>