This is a note to let you know that I've just added the patch titled
soc: bcm: brcmstb: biuctrl: fix of_iomap leak
to the 6.2-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:
soc-bcm-brcmstb-biuctrl-fix-of_iomap-leak.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit cf7cb0e2f7e2526e167c646549ede58453015aca
Author: Zhaoyang Li <lizhaoyang04@xxxxxxxxxxx>
Date: Mon Mar 27 19:54:22 2023 +0800
soc: bcm: brcmstb: biuctrl: fix of_iomap leak
[ Upstream commit c3fbced9af885a6f217fd95509a613d6590916ce ]
Smatch reports:
drivers/soc/bcm/brcmstb/biuctrl.c:291 setup_hifcpubiuctrl_regs() warn:
'cpubiuctrl_base' from of_iomap() not released on lines: 291.
This is because in setup_hifcpubiuctrl_regs(),
cpubiuctrl_base is not released when handle error, which may cause a leak.
To fix this, iounmap is added when handle error.
Fixes: 22f7a9116eba ("soc: brcmstb: Correct CPU_CREDIT_REG offset for Brahma-B53 CPUs")
Signed-off-by: Zhaoyang Li <lizhaoyang04@xxxxxxxxxxx>
Reviewed-by: Dan Carpenter <error27@xxxxxxxxx>
Reviewed-by: Dongliang Mu <dzm91@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230327115422.1536615-1-lizhaoyang04@xxxxxxxxxxx
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/soc/bcm/brcmstb/biuctrl.c b/drivers/soc/bcm/brcmstb/biuctrl.c
index e1d7b45432485..364ddbe365c24 100644
--- a/drivers/soc/bcm/brcmstb/biuctrl.c
+++ b/drivers/soc/bcm/brcmstb/biuctrl.c
@@ -288,6 +288,10 @@ static int __init setup_hifcpubiuctrl_regs(struct device_node *np)
if (BRCM_ID(family_id) == 0x7260 && BRCM_REV(family_id) == 0)
cpubiuctrl_regs = b53_cpubiuctrl_no_wb_regs;
out:
+ if (ret && cpubiuctrl_base) {
+ iounmap(cpubiuctrl_base);
+ cpubiuctrl_base = NULL;
+ }
return ret;
}
