From 0827a9ff2bbcbb03c33f1a6eb283fe051059482c Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Tue, 17 Aug 2010 15:15:37 -0700
Subject: [PATCH] USB: io_ti: check firmware version before updating
If we can't read the firmware for a device from the disk, and yet the
device already has a valid firmware image in it, we don't want to
replace the firmware with something invalid. So check the version
number to be less than the current one to verify this is the correct
thing to do.
Reported-by: Chris Beauchamp <chris@chillibean.tv>
Tested-by: Chris Beauchamp <chris@chillibean.tv>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/usb/serial/io_ti.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index dc47f986df57f..c3f27c3167539 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -1151,7 +1151,7 @@ static int download_fw(struct edgeport_serial *serial)
/* Check if we have an old version in the I2C and
update if necessary */
- if (download_cur_ver != download_new_ver) {
+ if (download_cur_ver < download_new_ver) {
dbg("%s - Update I2C dld from %d.%d to %d.%d",
__func__,
firmware_version->Ver_Major,
--
2.30.2