USB: usbtmc: fix stupid bug in open()

open() will never succeed, as we always return -ENODEV.  Fix this
obvious bug.

Thanks to Jouni Ryno for reporting it.

Reported-by: Jouni Ryno <Jouni.Ryno@fmi.fi>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 0f5c05f6f9df..895a09839001 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -106,12 +106,13 @@ static int usbtmc_open(struct inode *inode, struct file *filp)
 {
         struct usb_interface *intf;
         struct usbtmc_device_data *data;
-        int retval = -ENODEV;
+        int retval = 0;
 
         intf = usb_find_interface(&usbtmc_driver, iminor(inode));
         if (!intf) {
                 printk(KERN_ERR KBUILD_MODNAME
                        ": can not find device for minor %d", iminor(inode));
+                retval = -ENODEV;
                 goto exit;
         }