Commit b99f51ba authored by Daniel Starke's avatar Daniel Starke Committed by Greg Kroah-Hartman
Browse files

tty: n_gsm: increase malformed counter for malformed control frames 



The malformed counter in gsm_mux is already increased in case of errors
detected in gsm_queue() and gsm1_receive(). gsm_dlci_command() also
detects a case for a malformed frame but does not increase the malformed
counter yet.

Fix this by also increasing the gsm_mux malformed counter in case of a
malformed frame in gsm_dlci_command().
Note that the malformed counter is not yet exposed and only set internally.

Signed-off-by: default avatarDaniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20230817093231.2317-5-daniel.starke@siemens.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a1ce6da0

drivers/tty/n_gsm.c

+3 −1
Original line number Diff line number Diff line
@@ -2455,8 +2455,10 @@ static void gsm_dlci_command(struct gsm_dlci *dlci, const u8 *data, int len) 
	data += dlen;



	/* Malformed command? */

	if (clen > len)

	if (clen > len) {

		dlci->gsm->malformed++;

		return;

	}



	if (command & 1)

		gsm_control_message(dlci->gsm, command, data, clen);