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AFS: Fix possible null pointer dereference in afs_alloc_server()

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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 <[email protected]>
Signed-off-by: David Howells <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Denis Kirjanov 2010-06-01 17:15:39 +01:00 • committed by Linus Torvalds
commit 037776fcbe
1 changed files with 3 additions and 2 deletions
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5
fs/afs/server.c
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@ -91,9 +91,10 @@ static struct afs_server *afs_alloc_server(struct afs_cell *cell,
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;
}