| Message ID | 3ebd2582af74b81ef7b57149f57c6a3bf0963953.1677721229.git.quic_asutoshd@quicinc.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | [v1,1/1] ufs: mcq: qcom: Clean the return path of ufs_qcom_mcq_config_resource | expand |
On Wed, Mar 01, 2023 at 05:42:56PM -0800, Asutosh Das wrote: > Smatch static checker reported: > drivers/ufs/host/ufs-qcom.c:1469 > ufs_qcom_mcq_config_resource() info: returning a literal zero is > cleaner > > Fix the above warning by returning in place instead of a jump to a > label. > Also remove the usage of devm_kfree() as it's unnecessary in this > function. > > Fixes: c263b4ef737e ("scsi: ufs: core: mcq: Configure resource regions") > Reported-by: Dan Carpenter <error27@gmail.com> > Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com> > --- > drivers/ufs/host/ufs-qcom.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c > index 43b1fc1ad33e..cb20c7136c2c 100644 > --- a/drivers/ufs/host/ufs-qcom.c > +++ b/drivers/ufs/host/ufs-qcom.c > @@ -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; This is a bug fix, so this needs to go in v6.3-rc > > 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); This is just a cleanup, so there's no rush here. So I would have preferred that these where split. But unless Martin insist, I don't think it's worth the churn of spinning this one more time... Reviewed-by: Bjorn Andersson <andersson@kernel.org> Regards, Bjorn > return ret; > } > > -- > 2.7.4 >
On Wed, Mar 01, 2023 at 05:42:56PM -0800, Asutosh Das wrote: > Smatch static checker reported: > drivers/ufs/host/ufs-qcom.c:1469 > ufs_qcom_mcq_config_resource() info: returning a literal zero is > cleaner > > Fix the above warning by returning in place instead of a jump to a > label. > Also remove the usage of devm_kfree() as it's unnecessary in this > function. > > Fixes: c263b4ef737e ("scsi: ufs: core: mcq: Configure resource regions") > Reported-by: Dan Carpenter <error27@gmail.com> > Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com> Reviewed-by: Manivannan Sadhasivam <mani@kernel.org> Thanks, Mani > --- > drivers/ufs/host/ufs-qcom.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c > index 43b1fc1ad33e..cb20c7136c2c 100644 > --- a/drivers/ufs/host/ufs-qcom.c > +++ b/drivers/ufs/host/ufs-qcom.c > @@ -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 >
diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 43b1fc1ad33e..cb20c7136c2c 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -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; }
Smatch static checker reported: drivers/ufs/host/ufs-qcom.c:1469 ufs_qcom_mcq_config_resource() info: returning a literal zero is cleaner Fix the above warning by returning in place instead of a jump to a label. Also remove the usage of devm_kfree() as it's unnecessary in this function. Fixes: c263b4ef737e ("scsi: ufs: core: mcq: Configure resource regions") Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com> --- drivers/ufs/host/ufs-qcom.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)