diff options
| author | Sjur Braendeland <sjur.brandeland@stericsson.com> | 2010-04-28 08:54:36 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-04-28 12:55:12 -0700 |
| commit | 5b2086567503f9b55136642031ec0067319f58e0 (patch) | |
| tree | 00c4264ed7a8a989b398166c2c5f98175f5c28a5 /net/caif/cfmuxl.c | |
| parent | e539d83cc8a4fa581cbf8ed288fdadb19a692cb0 (diff) | |
| download | linux-stable-5b2086567503f9b55136642031ec0067319f58e0.tar.gz linux-stable-5b2086567503f9b55136642031ec0067319f58e0.tar.bz2 linux-stable-5b2086567503f9b55136642031ec0067319f58e0.zip | |
caif: Add reference counting to service layer
Changes:
o Added functions cfsrvl_get and cfsrvl_put.
o Added support release_client to use by socket and net device.
o Increase reference counting for in-flight packets from cfmuxl
Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/caif/cfmuxl.c')
| -rw-r--r-- | net/caif/cfmuxl.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/net/caif/cfmuxl.c b/net/caif/cfmuxl.c index 6fb9f9e96cf8..7372f27f1d32 100644 --- a/net/caif/cfmuxl.c +++ b/net/caif/cfmuxl.c @@ -62,6 +62,7 @@ int cfmuxl_set_uplayer(struct cflayer *layr, struct cflayer *up, u8 linkid) { struct cfmuxl *muxl = container_obj(layr); spin_lock(&muxl->receive_lock); + cfsrvl_get(up); list_add(&up->node, &muxl->srvl_list); spin_unlock(&muxl->receive_lock); return 0; @@ -172,8 +173,11 @@ struct cflayer *cfmuxl_remove_uplayer(struct cflayer *layr, u8 id) struct cfmuxl *muxl = container_obj(layr); spin_lock(&muxl->receive_lock); up = get_up(muxl, id); + if (up == NULL) + return NULL; memset(muxl->up_cache, 0, sizeof(muxl->up_cache)); list_del(&up->node); + cfsrvl_put(up); spin_unlock(&muxl->receive_lock); return up; } @@ -203,8 +207,9 @@ static int cfmuxl_receive(struct cflayer *layr, struct cfpkt *pkt) */ return /* CFGLU_EPROT; */ 0; } - + cfsrvl_get(up); ret = up->receive(up, pkt); + cfsrvl_put(up); return ret; } |