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[PATCH] hostap: Fix null pointer dereference in prism2_pccard_card_present()

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local->hw_priv was initialized only after the interrupt handler was
registered. This could trigger a NULL pointer dereference in
prism2_pccard_card_present() that assumed that local->hw_priv is always
set (and it should have been). Fix this by setting local->hw_priv before
registering the interrupt handler.

Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Jouni Malinen 2005-08-28 17:53:32 -07:00 committed by Jeff Garzik
parent a8eef8a222
commit fbff868db3
1 changed files with 7 additions and 7 deletions
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14
drivers/net/wireless/hostap/hostap_cs.c
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@ -772,6 +772,13 @@ static int prism2_config(dev_link_t *link)
goto failed;
link->priv = dev;
iface = netdev_priv(dev);
local = iface->local;
local->hw_priv = hw_priv;
hw_priv->link = link;
strcpy(hw_priv->node.dev_name, dev->name);
link->dev = &hw_priv->node;
/*
* Allocate an interrupt line. Note that this does not assign a
* handler to the interrupt, unless the 'Handler' member of the
@ -817,13 +824,6 @@ static int prism2_config(dev_link_t *link)
link->state |= DEV_CONFIG;
link->state &= ~DEV_CONFIG_PENDING;
iface = netdev_priv(dev);
local = iface->local;
local->hw_priv = hw_priv;
hw_priv->link = link;
strcpy(hw_priv->node.dev_name, dev->name);
link->dev = &hw_priv->node;
local->shutdown = 0;
sandisk_enable_wireless(dev);