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authorJulia Lawall <julia@diku.dk>2009-01-09 12:22:53 -0800
committerKarsten Keil <kkeil@suse.de>2009-01-11 18:04:37 +0100
commit20b788045b73e81ace2498eae42220e64547d6d2 (patch)
tree35f72687fe439d6ea56ec2aaca4d0c40ea08cbf2 /drivers/isdn
parentf27b8c356c4fab9ad222b45bc1cd1c750e64d97b (diff)
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drivers/isdn/hardware/mISDN: 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: Karsten Keil <kkeil@suse.de>
Diffstat (limited to 'drivers/isdn')
-rw-r--r--drivers/isdn/hardware/mISDN/hfcmulti.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c
index 97f4708b3879..595ba8eb4a07 100644
--- a/drivers/isdn/hardware/mISDN/hfcmulti.c
+++ b/drivers/isdn/hardware/mISDN/hfcmulti.c
@@ -3615,7 +3615,7 @@ hfcm_bctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
static void
ph_state_change(struct dchannel *dch)
{
- struct hfc_multi *hc = dch->hw;
+ struct hfc_multi *hc;
int ch, i;
if (!dch) {
@@ -3623,6 +3623,7 @@ ph_state_change(struct dchannel *dch)
__func__);
return;
}
+ hc = dch->hw;
ch = dch->slot;
if (hc->type == 1) {