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authorSjur Braendeland <sjur.brandeland@stericsson.com>2010-04-28 08:54:36 +0000
committerDavid S. Miller <davem@davemloft.net>2010-04-28 12:55:12 -0700
commit5b2086567503f9b55136642031ec0067319f58e0 (patch)
tree00c4264ed7a8a989b398166c2c5f98175f5c28a5 /net/caif/cfmuxl.c
parente539d83cc8a4fa581cbf8ed288fdadb19a692cb0 (diff)
downloadop-kernel-dev-5b2086567503f9b55136642031ec0067319f58e0.zip
op-kernel-dev-5b2086567503f9b55136642031ec0067319f58e0.tar.gz
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.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/caif/cfmuxl.c b/net/caif/cfmuxl.c
index 6fb9f9e..7372f27 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;
}
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