[AX.25]: Mark all kmalloc users __must_check

The recent fix 0506d4068bad834aab1141b5dc5e748eb175c6b3 made obvious that
error values were not being propagated through the AX.25 stack.  To help
with that this patch marks all kmalloc users in the AX.25, NETROM and
ROSE stacks as __must_check.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 9 insertions, 7 deletions

diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 6cabf6d8a751..42233df2b099 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1088,8 +1088,8 @@ out:
 /*
  *      FIXME: nonblock behaviour looks like it may have a bug.
  */
-static int ax25_connect(struct socket *sock, struct sockaddr *uaddr,
-        int addr_len, int flags)
+static int __must_check ax25_connect(struct socket *sock,
+        struct sockaddr *uaddr, int addr_len, int flags)
 {
         struct sock *sk = sock->sk;
         ax25_cb *ax25 = ax25_sk(sk), *ax25t;
diff --git a/net/ax25/ax25_route.c b/net/ax25/ax25_route.c
index 8580356ace5c..0a0381622b1c 100644
--- a/net/ax25/ax25_route.c
+++ b/net/ax25/ax25_route.c
@@ -71,7 +71,7 @@ void ax25_rt_device_down(struct net_device *dev)
         write_unlock(&ax25_route_lock);
 }
 
-static int ax25_rt_add(struct ax25_routes_struct *route)
+static int __must_check ax25_rt_add(struct ax25_routes_struct *route)
 {
         ax25_route *ax25_rt;
         ax25_dev *ax25_dev;
diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c
index 0096105bcd47..c6aa7aa03234 100644
--- a/net/netrom/nr_route.c
+++ b/net/netrom/nr_route.c
@@ -87,8 +87,9 @@ static void nr_remove_neigh(struct nr_neigh *);
  *      Add a new route to a node, and in the process add the node and the
  *      neighbour if it is new.
  */
-static int nr_add_node(ax25_address *nr, const char *mnemonic, ax25_address *ax25,
-        ax25_digi *ax25_digi, struct net_device *dev, int quality, int obs_count)
+static int __must_check nr_add_node(ax25_address *nr, const char *mnemonic,
+        ax25_address *ax25, ax25_digi *ax25_digi, struct net_device *dev,
+        int quality, int obs_count)
 {
         struct nr_node  *nr_node;
         struct nr_neigh *nr_neigh;
@@ -406,7 +407,8 @@ static int nr_del_node(ax25_address *callsign, ax25_address *neighbour, struct n
 /*
  *      Lock a neighbour with a quality.
  */
-static int nr_add_neigh(ax25_address *callsign, ax25_digi *ax25_digi, struct net_device *dev, unsigned int quality)
+static int __must_check nr_add_neigh(ax25_address *callsign,
+        ax25_digi *ax25_digi, struct net_device *dev, unsigned int quality)
 {
         struct nr_neigh *nr_neigh;
 
diff --git a/net/rose/rose_route.c b/net/rose/rose_route.c
index 7252344779a0..d02985b00a20 100644
--- a/net/rose/rose_route.c
+++ b/net/rose/rose_route.c
@@ -52,7 +52,7 @@ struct rose_neigh *rose_loopback_neigh;
  *      Add a new route to a node, and in the process add the node and the
  *      neighbour if it is new.
  */
-static int rose_add_node(struct rose_route_struct *rose_route,
+static int __must_check rose_add_node(struct rose_route_struct *rose_route,
         struct net_device *dev)
 {
         struct rose_node  *rose_node, *rose_tmpn, *rose_tmpp;