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> --- v2: - [Greg Kroah-Hartman] Drop 'exit_path' and keep 'exit' instead v1: https://lore.kernel.org/linux-usb/1652354127-3499-1-git-send-email-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..4a06892f9774 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; @@ -5528,20 +5528,18 @@ static void port_over_current_notify(struct usb_port *port_dev) envp[0] = kasprintf(GFP_KERNEL, "OVER_CURRENT_PORT=%s", port_dev_path); if (!envp[0]) - goto exit_path; + goto exit; envp[1] = kasprintf(GFP_KERNEL, "OVER_CURRENT_COUNT=%u", port_dev->over_current_count); if (!envp[1]) goto exit; - envp[2] = NULL; kobject_uevent_env(&hub_dev->kobj, KOBJ_CHANGE, envp); - kfree(envp[1]); exit: + kfree(envp[1]); kfree(envp[0]); -exit_path: kfree(port_dev_path); } -- 2.36.0
