diff options
Diffstat (limited to 'net/caif/cfserl.c')
| -rw-r--r-- | net/caif/cfserl.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/net/caif/cfserl.c b/net/caif/cfserl.c index 06029ea..a11fbd6 100644 --- a/net/caif/cfserl.c +++ b/net/caif/cfserl.c @@ -14,7 +14,8 @@ #define container_obj(layr) ((struct cfserl *) layr) #define CFSERL_STX 0x02 -#define CAIF_MINIUM_PACKET_SIZE 4 +#define SERIAL_MINIUM_PACKET_SIZE 4 +#define SERIAL_MAX_FRAMESIZE 4096 struct cfserl { struct cflayer layer; struct cfpkt *incomplete_frm; @@ -59,14 +60,18 @@ static int cfserl_receive(struct cflayer *l, struct cfpkt *newpkt) u8 stx = CFSERL_STX; int ret; u16 expectlen = 0; + caif_assert(newpkt != NULL); spin_lock(&layr->sync); if (layr->incomplete_frm != NULL) { - layr->incomplete_frm = cfpkt_append(layr->incomplete_frm, newpkt, expectlen); pkt = layr->incomplete_frm; + if (pkt == NULL) { + spin_unlock(&layr->sync); + return -ENOMEM; + } } else { pkt = newpkt; } @@ -115,8 +120,8 @@ static int cfserl_receive(struct cflayer *l, struct cfpkt *newpkt) /* * Frame error handling */ - if (expectlen < CAIF_MINIUM_PACKET_SIZE - || expectlen > CAIF_MAX_FRAMESIZE) { + if (expectlen < SERIAL_MINIUM_PACKET_SIZE + || expectlen > SERIAL_MAX_FRAMESIZE) { if (!layr->usestx) { if (pkt != NULL) cfpkt_destroy(pkt); @@ -154,7 +159,6 @@ static int cfserl_receive(struct cflayer *l, struct cfpkt *newpkt) if (layr->usestx) { if (tail_pkt != NULL) pkt = cfpkt_append(pkt, tail_pkt, 0); - /* Start search for next STX if frame failed */ continue; } else { |
