AFS: Fix possible null pointer dereference in afs_alloc_server()
Fix a possible null pointer dereference in afs_alloc_server(): the server
pointer is NULL if there was an allocation failure, and under such a
condition, we can't dereference it in the _leave() statement.
Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/afs/server.c b/fs/afs/server.c
index f490995..9fdc7fe 100644
--- a/fs/afs/server.c
+++ b/fs/afs/server.c
@@ -91,9 +91,10 @@
memcpy(&server->addr, addr, sizeof(struct in_addr));
server->addr.s_addr = addr->s_addr;
+ _leave(" = %p{%d}", server, atomic_read(&server->usage));
+ } else {
+ _leave(" = NULL [nomem]");
}
-
- _leave(" = %p{%d}", server, atomic_read(&server->usage));
return server;
}