On Wed, Mar 01 2023 at 23:05 -0800, Manivannan Sadhasivam wrote:
On Tue, Feb 28, 2023 at 10:27:06AM -0800, Asutosh Das wrote:
The patch (c263b4ef737e: "scsi: ufs: core: mcq: Configure resource
regions") from Jan 13, 2023, leads to the following Smatch static
checker warning:
drivers/ufs/host/ufs-qcom.c:1455 ufs_qcom_mcq_config_resource() warn:
passing zero to 'PTR_ERR'
drivers/ufs/host/ufs-qcom.c:1469 ufs_qcom_mcq_config_resource() info:
returning a literal zero is cleaner
Fix the above warnings.
You should not name the subject after the tool that used to find the issues.
Instead, subject should mention the actual issue like fixing return values,
removing the devm_kfree in error path etc...
Provided that, you should also split this patch into two as you are fixing
two independent issues.
Thanks,
Mani
Thanks for taking a look.
I will fix it in the next version.
-Asd
Fixes: c263b4ef737e ("scsi: ufs: core: mcq: Configure resource regions")
Reported-by: Dan Carpenter <error27@xxxxxxxxx>
Signed-off-by: Asutosh Das <quic_asutoshd@xxxxxxxxxxx>
---
drivers/ufs/host/ufs-qcom.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
index 34fc453f3eb1..cb20c7136c2c 100644
--- a/drivers/ufs/host/ufs-qcom.c
+++ b/drivers/ufs/host/ufs-qcom.c
@@ -1451,8 +1451,8 @@ static int ufs_qcom_mcq_config_resource(struct ufs_hba *hba)
if (IS_ERR(res->base)) {
dev_err(hba->dev, "Failed to map res %s, err=%d\n",
res->name, (int)PTR_ERR(res->base));
- res->base = NULL;
ret = PTR_ERR(res->base);
+ res->base = NULL;
return ret;
}
}
@@ -1466,7 +1466,7 @@ static int ufs_qcom_mcq_config_resource(struct ufs_hba *hba)
/* Explicitly allocate MCQ resource from ufs_mem */
res_mcq = devm_kzalloc(hba->dev, sizeof(*res_mcq), GFP_KERNEL);
if (!res_mcq)
- return ret;
+ return -ENOMEM;
res_mcq->start = res_mem->start +
MCQ_SQATTR_OFFSET(hba->mcq_capabilities);
@@ -1478,7 +1478,7 @@ static int ufs_qcom_mcq_config_resource(struct ufs_hba *hba)
if (ret) {
dev_err(hba->dev, "Failed to insert MCQ resource, err=%d\n",
ret);
- goto insert_res_err;
+ return ret;
}
res->base = devm_ioremap_resource(hba->dev, res_mcq);
@@ -1495,8 +1495,6 @@ static int ufs_qcom_mcq_config_resource(struct ufs_hba *hba)
ioremap_err:
res->base = NULL;
remove_resource(res_mcq);
-insert_res_err:
- devm_kfree(hba->dev, res_mcq);
return ret;
}
--
2.7.4
--
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