scsi: fnic: Return appropriate error code for mem alloc failure

Return appropriate error code from fnic_probe when memory create slab pool
fails. Fix bug report.

Suggested-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Sesidhar Baddela <sebaddel@cisco.com>
Reviewed-by: Arulprabhu Ponnusamy <arulponn@cisco.com>
Reviewed-by: Gian Carlo Boffa <gcboffa@cisco.com>
Reviewed-by: Arun Easi <aeasi@cisco.com>
Signed-off-by: Karan Tilak Kumar <kartilak@cisco.com>
Link: https://lore.kernel.org/r/20250110091746.17671-1-kartilak@cisco.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Author: Karan Tilak Kumar

drivers/scsi/fnic/fnic_main.c

@@ -888,24 +888,32 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]);
-	if (!pool)
+	if (!pool) {
+		err = -ENOMEM;
 		goto err_out_free_resources;
+	}
 	fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT] = pool;
 
 	pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_MAX]);
-	if (!pool)
+	if (!pool) {
+		err = -ENOMEM;
 		goto err_out_free_dflt_pool;
+	}
 	fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX] = pool;
 
 	pool = mempool_create_slab_pool(FDLS_MIN_FRAMES, fdls_frame_cache);
-	if (!pool)
+	if (!pool) {
+		err = -ENOMEM;
 		goto err_out_fdls_frame_pool;
+	}
 	fnic->frame_pool = pool;
 
 	pool = mempool_create_slab_pool(FDLS_MIN_FRAME_ELEM,
 						fdls_frame_elem_cache);
-	if (!pool)
+	if (!pool) {
+		err = -ENOMEM;
 		goto err_out_fdls_frame_elem_pool;
+	}
 	fnic->frame_elem_pool = pool;
 
 	/* setup vlan config, hw inserts vlan header */