[PATCH 5.14 143/168] gpio: mpc8xxx: Fix a resources leak in the error handling path of mpc8xxx_probe()

From: Greg Kroah-Hartman
Date: Mon Sep 20 2021 - 14:55:54 EST


From: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>

[ Upstream commit 555bda42b0c1a5ffb72d3227c043e8afde778f1f ]

Commit 698b8eeaed72 ("gpio/mpc8xxx: change irq handler from chained to normal")
has introduced a new 'goto err;' at the very end of the function, but has
not updated the error handling path accordingly.

Add the now missing 'irq_domain_remove()' call which balances a previous
'irq_domain_create_linear() call.

Fixes: 698b8eeaed72 ("gpio/mpc8xxx: change irq handler from chained to normal")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpio/gpio-mpc8xxx.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index 50b321a1ab1b..9acfa25ad6ee 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -416,6 +416,8 @@ static int mpc8xxx_probe(struct platform_device *pdev)

return 0;
err:
+ if (mpc8xxx_gc->irq)
+ irq_domain_remove(mpc8xxx_gc->irq);
iounmap(mpc8xxx_gc->regs);
return ret;
}
--
2.30.2