From f3d8b2e467da7a9237a45248ff03b56b6a7c3df7 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Fri, 9 Jan 2009 10:22:22 +0000 Subject: [PATCH] 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/) // @@ 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; // Signed-off-by: Julia Lawall Signed-off-by: Andrew Morton Signed-off-by: David S. Miller --- net/bridge/netfilter/ebtables.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) 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++; -- 2.20.1