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authorGreg Kroah-Hartman <gregkh@suse.de>2010-08-17 15:15:37 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2010-08-23 20:50:15 -0700
commit0827a9ff2bbcbb03c33f1a6eb283fe051059482c (patch)
parentd1ab903d2552b2362339b19203c7f01c797cb316 (diff)
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>
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index dc47f986df57..c3f27c316753 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",