scsi: ufs: mcq: qcom: Fix passing zero to PTR_ERR

Fix an error case in ufs_qcom_mcq_config_resource(), where the return value
is set to 0 before passing it to PTR_ERR.

This led to Smatch warning:

drivers/ufs/host/ufs-qcom.c:1455 ufs_qcom_mcq_config_resource() warn:
passing zero to 'PTR_ERR'

Fixes: c263b4e ("scsi: ufs: core: mcq: Configure resource regions")
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com>
Link: https://lore.kernel.org/r/94ca99b327af634799ce5f25d0112c28cd00970d.1677721072.git.quic_asutoshd@quicinc.com
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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;
 		}
 	}