usb: wusb: don't overflow the Keep Alive IE buffer
The Keep Alive IE only has space for WUIE_ELT_MAX (== 4) device addresses.
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c
index 46e79d3..7ec24e4 100644
--- a/drivers/usb/wusbcore/devconnect.c
+++ b/drivers/usb/wusbcore/devconnect.c
@@ -438,7 +438,7 @@
old_keep_alives = ie->hdr.bLength - sizeof(ie->hdr);
keep_alives = 0;
for (cnt = 0;
- keep_alives <= WUIE_ELT_MAX && cnt < wusbhc->ports_max;
+ keep_alives < WUIE_ELT_MAX && cnt < wusbhc->ports_max;
cnt++) {
unsigned tt = msecs_to_jiffies(wusbhc->trust_timeout);