[PATCH] usb: hub: Simplify error and success path in port_over_current_notify

[Eugeniu Rosca]

From: Bhuvanesh Surachari <Bhuvanesh_Surachari@xxxxxxxxxx>

kasprintf() returns NULL or valid pointer. Since kfree() can handle
NULL pointer condition, simplify error and success paths in function
port_over_current_notify() by removing multiple error path labels.

Signed-off-by: Bhuvanesh Surachari <Bhuvanesh_Surachari@xxxxxxxxxx>
Signed-off-by: Eugeniu Rosca <erosca@xxxxxxxxxxxxxx>
---
 drivers/usb/core/hub.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 1460857026e0..9ab8abf14790 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -5511,7 +5511,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
 /* Handle notifying userspace about hub over-current events */
 static void port_over_current_notify(struct usb_port *port_dev)
 {
-	char *envp[3];
+	char *envp[3] = { NULL, NULL, NULL };
 	struct device *hub_dev;
 	char *port_dev_path;
 
@@ -5533,15 +5533,13 @@ static void port_over_current_notify(struct usb_port *port_dev)
 	envp[1] = kasprintf(GFP_KERNEL, "OVER_CURRENT_COUNT=%u",
 			port_dev->over_current_count);
 	if (!envp[1])
-		goto exit;
+		goto exit_path;
 
-	envp[2] = NULL;
 	kobject_uevent_env(&hub_dev->kobj, KOBJ_CHANGE, envp);
 
+exit_path:
 	kfree(envp[1]);
-exit:
 	kfree(envp[0]);
-exit_path:
 	kfree(port_dev_path);
 }
 
-- 
2.36.0