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authorJouni Malinen <jkmaline@cc.hut.fi>2005-08-28 17:53:32 -0700
committerJeff Garzik <jgarzik@pobox.com>2005-08-31 22:48:39 -0400
commitfbff868db3a4cc6a89d51da9a6d49b26c29d04fb (patch)
tree3582ea805d0153b42979bdc8315c68607db928b6 /drivers/net/wireless/hostap
parenta8eef8a22232e64be76410100c52038b21bda7ed (diff)
[PATCH] hostap: Fix null pointer dereference in prism2_pccard_card_present()
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>
Diffstat (limited to 'drivers/net/wireless/hostap')
-rw-r--r--drivers/net/wireless/hostap/hostap_cs.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c
index e1f1eb8e484..faa83badf0a 100644
--- a/drivers/net/wireless/hostap/hostap_cs.c
+++ b/drivers/net/wireless/hostap/hostap_cs.c
@@ -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);