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>
---
 drivers/scsi/sd.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 35856685d7fa..b3926c43e700 100644
--- a/drivers/scsi/sd.c
+++ b/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);
@@ -3691,7 +3691,7 @@ 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;
@@ -3699,7 +3699,7 @@ static int sd_revalidate_disk(struct gendisk *disk)
 	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;
 }
 
 /**
-- 
2.43.0

On 8/26/25 03:39, Abinash Singh wrote:
> 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>

[...]

>  	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);
>  

Nit: please delete the blank line above too.

> -	return err;
>  }
>  
>  /**


-- 
Damien Le Moal
Western Digital Research