Commit 28ab2c5f authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman

USB: ldusb: fix memleak on disconnect

commit b14a3904 upstream.

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.

Fixes: 2824bd25 ("[PATCH] USB: add ldusb driver")
Cc: stable <stable@vger.kernel.org>     # 2.6.13
Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20191010125835.27031-2-johan@kernel.orgSigned-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent edd3e9c7
......@@ -380,10 +380,7 @@ static int ld_usb_release(struct inode *inode, struct file *file)
goto exit;
}
if (mutex_lock_interruptible(&dev->mutex)) {
retval = -ERESTARTSYS;
goto exit;
}
mutex_lock(&dev->mutex);
if (dev->open_count != 1) {
retval = -ENODEV;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment