From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Wed, 11 Mar 2009 03:42:55 +0000 (-0700)
Subject: USB: usbtmc: fix stupid bug in open()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5b10916ea0a62920204517e1c4ce14560b4f96ab;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

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>
---

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;
 	}