This is a note to let you know that I've just added the patch titled
EDAC/highbank: Fix memory leak in highbank_mc_probe()
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
edac-highbank-fix-memory-leak-in-highbank_mc_probe.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 511f624817dec8826a96a23e5193ca65b6891e00
Author: Miaoqian Lin <linmq006@xxxxxxxxx>
Date: Thu Dec 29 09:48:24 2022 +0400
EDAC/highbank: Fix memory leak in highbank_mc_probe()
[ Upstream commit e7a293658c20a7945014570e1921bf7d25d68a36 ]
When devres_open_group() fails, it returns -ENOMEM without freeing memory
allocated by edac_mc_alloc().
Call edac_mc_free() on the error handling path to avoid a memory leak.
[ bp: Massage commit message. ]
Fixes: a1b01edb2745 ("edac: add support for Calxeda highbank memory controller")
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Signed-off-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Reviewed-by: Andre Przywara <andre.przywara@xxxxxxx>
Link: https://lore.kernel.org/r/20221229054825.1361993-1-linmq006@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/edac/highbank_mc_edac.c b/drivers/edac/highbank_mc_edac.c
index 61b76ec226af..19fba258ae10 100644
--- a/drivers/edac/highbank_mc_edac.c
+++ b/drivers/edac/highbank_mc_edac.c
@@ -174,8 +174,10 @@ static int highbank_mc_probe(struct platform_device *pdev)
drvdata = mci->pvt_info;
platform_set_drvdata(pdev, mci);
- if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL))
- return -ENOMEM;
+ if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL)) {
+ res = -ENOMEM;
+ goto free;
+ }
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!r) {
@@ -243,6 +245,7 @@ static int highbank_mc_probe(struct platform_device *pdev)
edac_mc_del_mc(&pdev->dev);
err:
devres_release_group(&pdev->dev, NULL);
+free:
edac_mc_free(mci);
return res;
}
