diff options
| author | Tianyi Jing <jingfelix@hust.edu.cn> | 2023-03-18 15:38:51 +0100 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2023-03-21 15:50:24 +0100 |
| commit | 813cc94c7847ae4a17e9f744fb4dbdf7df6bd732 (patch) | |
| tree | f6d6f87f21770dac9a58aad6b9523ce0d1970de2 /drivers/hwmon/xgene-hwmon.c | |
| parent | hwmon: fix potential sensor registration fail if of_node is missing (diff) | |
| download | linux-813cc94c7847ae4a17e9f744fb4dbdf7df6bd732.tar.xz linux-813cc94c7847ae4a17e9f744fb4dbdf7df6bd732.zip | |
hwmon: (xgene) Fix ioremap and memremap leak
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>
Diffstat (limited to 'drivers/hwmon/xgene-hwmon.c')
| -rw-r--r-- | drivers/hwmon/xgene-hwmon.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/hwmon/xgene-hwmon.c b/drivers/hwmon/xgene-hwmon.c index d1abea49f01b..78d9f52e2a71 100644 --- a/drivers/hwmon/xgene-hwmon.c +++ b/drivers/hwmon/xgene-hwmon.c @@ -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; |