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hwmon: (xgene) Fix ioremap and memremap leak 

[ Upstream commit 813cc94c78 ]

Smatch reports:

drivers/hwmon/xgene-hwmon.c:757 xgene_hwmon_probe() warn:
'ctx->pcc_comm_addr' from ioremap() not released on line: 757.

This is because in drivers/hwmon/xgene-hwmon.c:701 xgene_hwmon_probe(),
ioremap and memremap is not released, which may cause a leak.

To fix this, ioremap and memremap is modified to devm_ioremap and
devm_memremap.

Signed-off-by: Tianyi Jing <jingfelix@hust.edu.cn>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Link: https://lore.kernel.org/r/20230318143851.2191625-1-jingfelix@hust.edu.cn
[groeck: Fixed formatting and subject]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Tianyi Jing 2023-03-18 22:38:51 +08:00 committed by Greg Kroah-Hartman
parent f2226c840f
commit 9d482a09ac
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/hwmon/xgene-hwmon.c
View File

@ -698,14 +698,14 @@ static int xgene_hwmon_probe(struct platform_device *pdev)
ctx->comm_base_addr = pcc_chan->shmem_base_addr;
if (ctx->comm_base_addr) {
if (version == XGENE_HWMON_V2)
ctx->pcc_comm_addr = (void __force *)ioremap(
ctx->comm_base_addr,
pcc_chan->shmem_size);
ctx->pcc_comm_addr = (void __force *)devm_ioremap(&pdev->dev,
ctx->comm_base_addr,
pcc_chan->shmem_size);
else
ctx->pcc_comm_addr = memremap(
ctx->comm_base_addr,
pcc_chan->shmem_size,
MEMREMAP_WB);
ctx->pcc_comm_addr = devm_memremap(&pdev->dev,
ctx->comm_base_addr,
pcc_chan->shmem_size,
MEMREMAP_WB);
} else {
dev_err(&pdev->dev, "Failed to get PCC comm region\n");
rc = -ENODEV;