extcon: Fix error handling in extcon_dev_register

[ Upstream commit d3bdd1c3140724967ca4136755538fa7c05c2b4e ] When devm_kcalloc() fails, we should execute device_unregister() to unregister edev->dev from system. Fixes: 046050f ("extcon: Update the prototype of extcon_register_notifier() with enum extcon") Signed-off-by: Dinghao Liu <[email protected]> Signed-off-by: Chanwoo Choi <[email protected]> Signed-off-by: Sasha Levin <[email protected]>
xxmustafacooTR · Apr 7, 2021 · 6e65e0f · 6e65e0f
1 parent 869d286
commit 6e65e0f
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
@@ -1200,6 +1200,7 @@ int extcon_dev_register(struct extcon_dev *edev)
 			sizeof(*edev->nh) * edev->max_supported, GFP_KERNEL);
 	if (!edev->nh) {
 		ret = -ENOMEM;
+		device_unregister(&edev->dev);
 		goto err_dev;
 	}