Thread (211 messages) 211 messages, 1 author, 2016-01-29
STALE3803d REVIEWED: 1 (0M)

[PATCH 3.19.y-ckt 160/210] pinctrl: bcm2835: Fix memory leak in error path

From: Kamal Mostafa <hidden>
Date: 2016-01-29 01:23:42
Also in: lkml
Subsystem: pin control subsystem, the rest · Maintainers: Linus Walleij, Linus Torvalds

3.19.8-ckt14 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Stefan Wahren <redacted>

commit 53653c6b91750debba6dc4503003c851257fd340 upstream.

In case of an invalid pin value bcm2835_pctl_dt_node_to_map()
would leak the pull configs of already assigned pins.
So avoid this by calling the free map function in error case.

Signed-off-by: Stefan Wahren <redacted>
Fixes: e1b2dc70cd5b ("pinctrl: add bcm2835 driver")
Reviewed-by: Eric Anholt <redacted>
Signed-off-by: Linus Walleij <redacted>
Signed-off-by: Kamal Mostafa <redacted>
---
 drivers/pinctrl/pinctrl-bcm2835.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pinctrl/pinctrl-bcm2835.c b/drivers/pinctrl/pinctrl-bcm2835.c
index 752cd43..352c07e 100644
--- a/drivers/pinctrl/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/pinctrl-bcm2835.c
@@ -795,7 +795,7 @@ static int bcm2835_pctl_dt_node_to_map(struct pinctrl_dev *pctldev,
 	return 0;
 
 out:
-	kfree(maps);
+	bcm2835_pctl_dt_free_map(pctldev, maps, num_pins * maps_per_pin);
 	return err;
 }
 
-- 
1.9.1
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