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authorGreg Kroah-Hartman <gregkh@suse.de>2010-08-17 15:15:37 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2010-08-26 16:40:14 -0700
commit7bb7a0dd0031031e1bd5d41cbcd992ab925eaca1 (patch)
tree29f25024fdea87fe728551cf58f10165b452b4e2
parent38cebc0e22ee07f456f99401c559bb621e370e64 (diff)
USB: io_ti: check firmware version before updating
commit 0827a9ff2bbcbb03c33f1a6eb283fe051059482c upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/usb/serial/io_ti.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 3ff4895217d9..147e044632de 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -1156,7 +1156,7 @@ 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,