The patch titled
net/bridge/netfilter: move a dereference below a NULL test
has been added to the -mm tree. Its filename is
net-bridge-netfilter-move-a-dereference-below-a-null-test.patch
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------------------------------------------------------
Subject: net/bridge/netfilter: move a dereference below a NULL test
From: Julia Lawall <julia@xxxxxxx>
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@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
net/bridge/netfilter/ebtables.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN net/bridge/netfilter/ebtables.c~net-bridge-netfilter-move-a-dereference-below-a-null-test net/bridge/netfilter/ebtables.c
--- a/net/bridge/netfilter/ebtables.c~net-bridge-netfilter-move-a-dereference-below-a-null-test
+++ a/net/bridge/netfilter/ebtables.c
@@ -85,12 +85,13 @@ static inline int ebt_do_match (struct e
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++;
_
Patches currently in -mm which might be from julia@xxxxxxx are
origin.patch
linux-next.patch
arch-avr32-eliminate-null-test-and-memset-after-alloc_bootmem.patch
powerpc-powermac-add-missing-of_node_put.patch
net-tipc-bcasth-use-array_size.patch
fs-namespacec-drop-code-after-return.patch
mm-page_allocc-eliminate-null-test-and-memset-after-alloc_bootmem.patch
drivers-macintosh-add-missing-of_node_put-in-therm_adt746xc.patch
drivers-rtc-correct-an-error-test.patch
drivers-isdn-hardware-misdn-move-a-dereference-below-a-null-test.patch
drivers-mmc-move-a-dereference-below-a-null-test.patch
drivers-net-hamradio-6packc-move-a-dereference-below-a-null-test.patch
drivers-net-wireless-libertas-move-a-dereference-below-a-null-test.patch
drivers-scsi-move-a-dereference-below-a-null-test.patch
drivers-spi-move-a-dereference-below-a-null-test.patch
net-bridge-netfilter-move-a-dereference-below-a-null-test.patch
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