uio: add missing error codes

PATCH New Dan Carpenter 1 participant 1 message Apr 1, 2016

Subsystems (2)

Kernel janitors Userspace I/O (UIO)

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Dan Carpenter

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2016-04-01 11:04 UTC #0 lore raw

PATCH 1/1 uio: add missing error codes

My static checker complains that "ret" could be uninitialized at the end, which is true but it's more likely that it would be set to zero.

Signed-off-by Dan Carpenter <[email protected]>

drivers/uio/uio.c +12 -4

index bcc1fc0..fba021f 100644
@@ -271,12 +271,16 @@ static int uio_dev_add_attributes(struct uio_device *idev)
 			map_found = 1;
 			idev->map_dir = kobject_create_and_add("maps",
 							&idev->dev->kobj);
-			if (!idev->map_dir)
+			if (!idev->map_dir) {
+				ret = -ENOMEM;
 				goto err_map;
+			}
 		}
 		map = kzalloc(sizeof(*map), GFP_KERNEL);
-		if (!map)
+		if (!map) {
+			ret = -ENOMEM;
 			goto err_map_kobj;
+		}
 		kobject_init(&map->kobj, &map_attr_type);
 		map->mem = mem;
 		mem->map = map;

@@ -296,12 +300,16 @@ static int uio_dev_add_attributes(struct uio_device *idev)
 			portio_found = 1;
 			idev->portio_dir = kobject_create_and_add("portio",
 							&idev->dev->kobj);
-			if (!idev->portio_dir)
+			if (!idev->portio_dir) {
+				ret = -ENOMEM;
 				goto err_portio;
+			}
 		}
 		portio = kzalloc(sizeof(*portio), GFP_KERNEL);
-		if (!portio)
+		if (!portio) {
+			ret = -ENOMEM;
 			goto err_portio_kobj;
+		}
 		kobject_init(&portio->kobj, &portio_attr_type);
 		portio->port = port;
 		port->portio = portio;