Commit f086ced1 authored by Du, Alek's avatar Du, Alek Committed by Greg Kroah-Hartman

n_gsm: fix the wrong FCS handling

FCS could be GSM0_SOF, so will break state machine...

[This byte isn't quoted in any way so a SOF here doesn't imply an error
 occurred.]
Signed-off-by: default avatarAlek Du <alek.du@intel.com>
Signed-off-by: default avatarAlan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org> [3.0]

[Trivial but best backported once its in 3.1rc I think]
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent bff52fd4
......@@ -1871,10 +1871,6 @@ static void gsm0_receive(struct gsm_mux *gsm, unsigned char c)
break;
case GSM_FCS: /* FCS follows the packet */
gsm->received_fcs = c;
if (c == GSM0_SOF) {
gsm->state = GSM_SEARCH;
break;
}
gsm_queue(gsm);
gsm->state = GSM_SSOF;
break;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment