diff options
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; } |