diff options
| author | Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com> | 2012-03-11 10:28:31 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-03-11 15:38:16 -0700 |
| commit | 374458b3fe4288f820dbf3de0728e314d969f9e4 (patch) | |
| tree | 5249fa436617d45cd2c3e5fad60732fc6d1a0e94 /net/caif/cfdgml.c | |
| parent | e8abbe0d0236ac1d55d21fec7a8d2ee03e9d3258 (diff) | |
| download | linux-stable-374458b3fe4288f820dbf3de0728e314d969f9e4.tar.gz linux-stable-374458b3fe4288f820dbf3de0728e314d969f9e4.tar.bz2 linux-stable-374458b3fe4288f820dbf3de0728e314d969f9e4.zip | |
caif: Fix for a race in socket transmit with flow control.
Kill faulty checks on flow-off leading to connection drop at race conditions.
caif_socket checks for flow-on before transmitting and goes to sleep or
return -EAGAIN upon flow stop. Remove faulty subsequent checks on flow-off
leading to connection drop. Also fix memory leaks on some of the errors paths.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/caif/cfdgml.c')
| -rw-r--r-- | net/caif/cfdgml.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/caif/cfdgml.c b/net/caif/cfdgml.c index 0f5ff27aa41c..a63f4a5f5aff 100644 --- a/net/caif/cfdgml.c +++ b/net/caif/cfdgml.c @@ -86,12 +86,17 @@ static int cfdgml_transmit(struct cflayer *layr, struct cfpkt *pkt) struct caif_payload_info *info; struct cfsrvl *service = container_obj(layr); int ret; - if (!cfsrvl_ready(service, &ret)) + + if (!cfsrvl_ready(service, &ret)) { + cfpkt_destroy(pkt); return ret; + } /* STE Modem cannot handle more than 1500 bytes datagrams */ - if (cfpkt_getlen(pkt) > DGM_MTU) + if (cfpkt_getlen(pkt) > DGM_MTU) { + cfpkt_destroy(pkt); return -EMSGSIZE; + } cfpkt_add_head(pkt, &zero, 3); packet_type = 0x08; /* B9 set - UNCLASSIFIED */ |