* [PATCH] afs: fix possible null pointer dereference in afs_alloc_server
@ 2010-05-30 7:59 Denis Kirjanov
2010-06-01 15:47 ` David Howells
0 siblings, 1 reply; 2+ messages in thread
From: Denis Kirjanov @ 2010-05-30 7:59 UTC (permalink / raw)
To: dhowells; +Cc: linux-afs, linux-kernel
Fix possible null pointer dereference since kzalloc can return null
Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org>
---
fs/afs/server.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/fs/afs/server.c b/fs/afs/server.c
index f490995..32e2a91 100644
--- a/fs/afs/server.c
+++ b/fs/afs/server.c
@@ -93,7 +93,10 @@ static struct afs_server *afs_alloc_server(struct afs_cell *cell,
server->addr.s_addr = addr->s_addr;
}
- _leave(" = %p{%d}", server, atomic_read(&server->usage));
+ if (likely(server))
+ _leave(" = %p{%d}", server, atomic_read(&server->usage));
+ else
+ _leave(" = -ENOMEM");
return server;
}
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2010-05-30 7:59 [PATCH] afs: fix possible null pointer dereference in afs_alloc_server Denis Kirjanov
2010-06-01 15:47 ` David Howells
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