patch "USB: legousbtower: fix memleak on disconnect" added to usb-linus

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

USB: legousbtower: fix memleak on disconnect

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-linus 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 hopefully also be merged in Linus's tree for the next -rc kernel release.

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

From b6c03e5f7b463efcafd1ce141bd5a8fc4e583ae2 Mon Sep 17 00:00:00 2001
From: Johan Hovold <[email protected]>
Date: Thu, 10 Oct 2019 14:58:35 +0200
Subject: USB: legousbtower: fix memleak on disconnect

If disconnect() races with release() after a process has been interrupted, release() could end up returning early and the driver would fail to free its driver data.

---
 drivers/usb/misc/legousbtower.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

index 9d4c52a7ebe0..62dab2441ec4 100644
@@ -419,10 +419,7 @@ static int tower_release (struct inode *inode, struct file *file)
 		goto exit;
 	}
 
-	if (mutex_lock_interruptible(&dev->lock)) {
-	        retval = -ERESTARTSYS;
-		goto exit;
-	}
+	mutex_lock(&dev->lock);
 
 	if (dev->open_count != 1) {
 		dev_dbg(&dev->udev->dev, "%s: device not opened exactly once\n",

2.23.0