patch "USB: serial: io_edgeport: fix memory leaks in probe error path" added to usb-next

This is a note to let you know that I've just added the patch titled

USB: serial: io_edgeport: fix memory leaks in probe error path

to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-next branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will also be merged in the next major kernel release during the merge window.

If you have any questions about this process, please let me know.

From: Johan Hovold <[email protected]>
Date: Sun, 8 May 2016 20:07:57 +0200
Subject: USB: serial: io_edgeport: fix memory leaks in probe error path

URBs and buffers allocated in attach for Epic devices would never be deallocated in case of a later probe error (e.g. failure to allocate minor numbers) as disconnect is then never called.

Fix by moving deallocation to release and making sure that the URBs are first unlinked.

release")

---
 drivers/usb/serial/io_edgeport.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

index edd568bc0de5..11c05ce2f35f 100644
@@ -2959,16 +2959,9 @@ static void edge_disconnect(struct usb_serial *serial)
 {
 	struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
 
-	/* stop reads and writes on all ports */
-	/* free up our endpoint stuff */
 	if (edge_serial->is_epic) {
 		usb_kill_urb(edge_serial->interrupt_read_urb);
-		usb_free_urb(edge_serial->interrupt_read_urb);
-		kfree(edge_serial->interrupt_in_buffer);
-
 		usb_kill_urb(edge_serial->read_urb);
-		usb_free_urb(edge_serial->read_urb);
-		kfree(edge_serial->bulk_in_buffer);
 	}
 }
 

@@ -2981,6 +2974,16 @@ static void edge_release(struct usb_serial *serial)
 {
 	struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
 
+	if (edge_serial->is_epic) {
+		usb_kill_urb(edge_serial->interrupt_read_urb);
+		usb_free_urb(edge_serial->interrupt_read_urb);
+		kfree(edge_serial->interrupt_in_buffer);
+
+		usb_kill_urb(edge_serial->read_urb);
+		usb_free_urb(edge_serial->read_urb);
+		kfree(edge_serial->bulk_in_buffer);
+	}
+
 	kfree(edge_serial);
 }
 

2.8.2