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tty: n_gsm: increase malformed counter for malformed control frames

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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: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20230817093231.2317-5-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Daniel Starke 2023-08-17 11:32:27 +02:00 committed by Greg Kroah-Hartman
parent a1ce6da083
commit b99f51ba04
1 changed files with 3 additions and 1 deletions
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4
drivers/tty/n_gsm.c
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@ -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);