linux-kernel - [PATCH v2] scsi: ipr: Convert ipr_probe_ioa

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Date:   Sun, 8 Jan 2023 21:58:51 +0530
From:   Deepak R Varma <drv@...lo.com>
To:     Brian King <brking@...ibm.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Saurabh Singh Sengar <ssengar@...rosoft.com>,
        Praveen Kumar <kumarpraveen@...ux.microsoft.com>
Subject: [PATCH v2] scsi: ipr: Convert ipr_probe_ioa_part2 as void

Convert function ipr_probe_ioa_part2() to return void instead
of int since the current implementation always returns 0 to the caller.
The transformation also eliminates the dead code when calling
ipr_probe_ioa_part2() function.
Issue identified using returnvar Coccinelle semantic patch.

Signed-off-by: Deepak R Varma <drv@...lo.com>
---
Changes in v2:
   - retain and update Return value comment in function documentation

 drivers/scsi/ipr.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 2022ffb45041..dfb759fbbd87 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -9505,11 +9505,10 @@ static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
  * This function takes care of initilizing the adapter to the point
  * where it can accept new commands.
  * Return value:
- * 	0 on success / -EIO on failure
+ *     none
  **/
-static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
+static void ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
 {
-	int rc = 0;
 	unsigned long host_lock_flags = 0;

 	ENTER;
@@ -9525,7 +9524,6 @@ static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
 	spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);

 	LEAVE;
-	return rc;
 }

 /**
@@ -10568,12 +10566,7 @@ static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
 		return rc;

 	ioa_cfg = pci_get_drvdata(pdev);
-	rc = ipr_probe_ioa_part2(ioa_cfg);
-
-	if (rc) {
-		__ipr_remove(pdev);
-		return rc;
-	}
+	ipr_probe_ioa_part2(ioa_cfg);

 	rc = scsi_add_host(ioa_cfg->host, &pdev->dev);

--
2.34.1