scsi: sd: Make sd_revalidate_disk() return void

The sd_revalidate_disk() function currently returns 0 for both success
and memory allocation failure. Since none of its callers use the return
value, this return code is both unnecessary and potentially misleading.

Change the return type of sd_revalidate_disk() from int to void
and remove all return value handling. This makes the function
semantics clearer and avoids confusion about unused return codes.

Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Abinash Singh <abinashsinghlalotra@gmail.com>
Link: https://lore.kernel.org/r/20250825183940.13211-4-abinashsinghlalotra@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Author: avinashlalotra

drivers/scsi/sd.c

@@ -106,7 +106,7 @@ static void sd_config_discard(struct scsi_disk *sdkp, struct queue_limits *lim,
 		unsigned int mode);
 static void sd_config_write_same(struct scsi_disk *sdkp,
 		struct queue_limits *lim);
-static int  sd_revalidate_disk(struct gendisk *);
+static void  sd_revalidate_disk(struct gendisk *);
 static void sd_unlock_native_capacity(struct gendisk *disk);
 static void sd_shutdown(struct device *);
 static void scsi_disk_release(struct device *cdev);
@@ -3691,15 +3691,15 @@ static void sd_read_block_zero(struct scsi_disk *sdkp)
  *	performs disk spin up, read_capacity, etc.
  *	@disk: struct gendisk we care about
  **/
-static int sd_revalidate_disk(struct gendisk *disk)
+static void sd_revalidate_disk(struct gendisk *disk)
 {
 	struct scsi_disk *sdkp = scsi_disk(disk);
 	struct scsi_device *sdp = sdkp->device;
 	sector_t old_capacity = sdkp->capacity;
 	struct queue_limits *lim = NULL;
 	unsigned char *buffer = NULL;
 	unsigned int dev_max;
-	int err = 0;
+	int err;
 
 	SCSI_LOG_HLQUEUE(3, sd_printk(KERN_INFO, sdkp,
 				      "sd_revalidate_disk\n"));
@@ -3709,11 +3709,11 @@ static int sd_revalidate_disk(struct gendisk *disk)
 	 * of the other niceties.
 	 */
 	if (!scsi_device_online(sdp))
-		goto out;
+		return;
 
 	lim = kmalloc(sizeof(*lim), GFP_KERNEL);
 	if (!lim)
-		goto out;
+		return;
 
 	buffer = kmalloc(SD_BUF_SIZE, GFP_KERNEL);
 	if (!buffer)
@@ -3823,7 +3823,6 @@ static int sd_revalidate_disk(struct gendisk *disk)
 	kfree(buffer);
 	kfree(lim);
 
-	return err;
 }
 
 /**