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path: root/drivers/isdn/mISDN/stack.c
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Diffstat (limited to 'drivers/isdn/mISDN/stack.c')
-rw-r--r--drivers/isdn/mISDN/stack.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/isdn/mISDN/stack.c b/drivers/isdn/mISDN/stack.c
index 3e1532a180ff..0d05ec43012c 100644
--- a/drivers/isdn/mISDN/stack.c
+++ b/drivers/isdn/mISDN/stack.c
@@ -364,7 +364,7 @@ add_layer2(struct mISDNchannel *ch, struct mISDNstack *st)
364static int 364static int
365st_own_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg) 365st_own_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
366{ 366{
367 if (!ch->st || ch->st->layer1) 367 if (!ch->st || !ch->st->layer1)
368 return -EINVAL; 368 return -EINVAL;
369 return ch->st->layer1->ctrl(ch->st->layer1, cmd, arg); 369 return ch->st->layer1->ctrl(ch->st->layer1, cmd, arg);
370} 370}