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| author | Daniel Starke <daniel.starke@siemens.com> | 2023-08-17 11:32:27 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-22 15:21:24 +0200 |
| commit | b99f51ba04035b2394cae008f9ac09563b012307 (patch) | |
| tree | dafcbe3fa9c977257d39edcc00c7b1ce0e5dfd5d /drivers/tty | |
| parent | a1ce6da0833b91355499568caf0f432074d91cee (diff) | |
| download | linux-stable-b99f51ba04035b2394cae008f9ac09563b012307.tar.gz linux-stable-b99f51ba04035b2394cae008f9ac09563b012307.tar.bz2 linux-stable-b99f51ba04035b2394cae008f9ac09563b012307.zip | |
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: 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>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/n_gsm.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 68276a7e62a0..2dc5bf14da2d 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -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); |