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authorJiri Slaby <jslaby@suse.cz>2010-03-16 05:29:54 +0000
committerDavid S. Miller <davem@davemloft.net>2010-03-16 14:15:45 -0700
commit21edbb223ed2af88b090e7945af7d91d672e3aa6 (patch)
treeb159ba512fdbdfe92d896a77109e7c0dadd36f87 /net/core/netpoll.c
parenta2f46ee1ba5ee249ce2ca1ee7a7a0ac46529fb4f (diff)
NET: netpoll, fix potential NULL ptr dereference
Stanse found that one error path in netpoll_setup dereferences npinfo even though it is NULL. Avoid that by adding new label and go to that instead. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Daniel Borkmann <danborkmann@googlemail.com> Cc: David S. Miller <davem@davemloft.net> Acked-by: chavey@google.com Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/netpoll.c')
-rw-r--r--net/core/netpoll.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 7aa69725376..d4ec38fa64e 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -735,7 +735,7 @@ int netpoll_setup(struct netpoll *np)
npinfo = kmalloc(sizeof(*npinfo), GFP_KERNEL);
if (!npinfo) {
err = -ENOMEM;
- goto release;
+ goto put;
}
npinfo->rx_flags = 0;
@@ -845,7 +845,7 @@ int netpoll_setup(struct netpoll *np)
kfree(npinfo);
}
-
+put:
dev_put(ndev);
return err;
}