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authorJulia Lawall <julia@diku.dk>2009-01-09 10:22:22 +0000
committerDavid S. Miller <davem@davemloft.net>2009-01-11 00:06:33 -0800
commitf3d8b2e467da7a9237a45248ff03b56b6a7c3df7 (patch)
tree352fcff7f85e95a3bf512d820b4fe7c483e79643
parent6c614a50206ee56c21b34cc02d0bd40e756db87e (diff)
net/bridge/netfilter: move a dereference below a NULL test
In each case, if the NULL test is necessary, then the dereference should be moved below the NULL test. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ type T; expression E; identifier i,fld; statement S; @@ - T i = E->fld; + T i; ... when != E when != i if (E == NULL) S + i = E->fld; // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/bridge/netfilter/ebtables.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index fa108c4..8a8743d 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -85,12 +85,13 @@ static inline int ebt_do_match (struct ebt_entry_match *m,
static inline int ebt_dev_check(char *entry, const struct net_device *device)
{
int i = 0;
- const char *devname = device->name;
+ const char *devname;
if (*entry == '\0')
return 0;
if (!device)
return 1;
+ devname = device->name;
/* 1 is the wildcard token */
while (entry[i] != '\0' && entry[i] != 1 && entry[i] == devname[i])
i++;