Commit d70063c4 authored Sep 02, 2005 by Al Viro Committed by David S. Miller Sep 02, 2005

[ATM]: Fix dereference of uninitialized pointer in zatm



Fixing breakage from [NET]: Kill skb->list - original was
	assign vcc
	do a bunch of stuff using ZATM_VCC(vcc)->pool as common subexpression
Now we do
	int pos = ZATM_VCC(vcc)->pool;
	assign vcc
	do a bunch of stuff
even though vcc is not even initialized when we enter that block...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 6475be16

drivers/atm/zatm.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -417,9 +417,9 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
		chan = (here[3] & uPD98401_AAL5_CHAN) >>
		uPD98401_AAL5_CHAN_SHIFT;
		if (chan < zatm_dev->chans && zatm_dev->rx_map[chan]) {
		int pos = ZATM_VCC(vcc)->pool;

		int pos;
		vcc = zatm_dev->rx_map[chan];
		pos = ZATM_VCC(vcc)->pool;
		if (skb == zatm_dev->last_free[pos])
		zatm_dev->last_free[pos] = NULL;
		skb_unlink(skb, zatm_dev->pool + pos);