From 20b788045b73e81ace2498eae42220e64547d6d2 Mon Sep 17 00:00:00 2001 From: Julia Lawall <julia@diku.dk> Date: Fri, 9 Jan 2009 12:22:53 -0800 Subject: 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> --- drivers/isdn/hardware/mISDN/hfcmulti.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/isdn') diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c index 97f4708..595ba8e 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) { -- cgit v1.1