scsi: virtio_scsi: Remove a useless function call

'inq_result' is known to be NULL. There is no point calling kfree().
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/08740635cdb0f8293e57c557b22e048daae50961.1685345683.git.christophe.jaillet@wanadoo.frReviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/virtio_scsi.c

@@ -338,10 +338,8 @@ static int virtscsi_rescan_hotunplug(struct virtio_scsi *vscsi)
 	int result, inquiry_len, inq_result_len = 256;
 	char *inq_result = kmalloc(inq_result_len, GFP_KERNEL);
 
-	if (!inq_result) {
-		kfree(inq_result);
+	if (!inq_result)
 		return -ENOMEM;
-	}
 
 	shost_for_each_device(sdev, shost) {
 		inquiry_len = sdev->inquiry_len ? sdev->inquiry_len : 36;