aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorJulia Lawall <julia@diku.dk>2009-01-09 10:23:09 +0000
committerDavid S. Miller <davem@davemloft.net>2009-01-11 00:06:34 -0800
commit0397a2648434a65d73564216c4f96945c192ad4a (patch)
tree757101f05c64d68e4133f79b8989a61e35f55b73
parentdebc251b602fa4795c00c0aa82caa28cebc619ee (diff)
drivers/net/hamradio/6pack.c: 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--drivers/net/hamradio/6pack.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/hamradio/6pack.c b/drivers/net/hamradio/6pack.c
index 50f1e17..2d40898 100644
--- a/drivers/net/hamradio/6pack.c
+++ b/drivers/net/hamradio/6pack.c
@@ -717,11 +717,12 @@ static int sixpack_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct sixpack *sp = sp_get(tty);
- struct net_device *dev = sp->dev;
+ struct net_device *dev;
unsigned int tmp, err;
if (!sp)
return -ENXIO;
+ dev = sp->dev;
switch(cmd) {
case SIOCGIFNAME: