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authorJulia Lawall <julia@diku.dk>2009-01-09 13:22:22 +0300
committerDavid S. Miller <davem@davemloft.net>2009-01-11 11:06:33 +0300
commitf3d8b2e467da7a9237a45248ff03b56b6a7c3df7 (patch)
tree352fcff7f85e95a3bf512d820b4fe7c483e79643 /net
parent6c614a50206ee56c21b34cc02d0bd40e756db87e (diff)
downloadlinux-f3d8b2e467da7a9237a45248ff03b56b6a7c3df7.tar.xz
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>
Diffstat (limited to '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 fa108c46e851..8a8743d7d6e7 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++;