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authorKalle Valo <Kalle.Valo@iki.fi>2005-08-28 22:46:57 +0300
committerJeff Garzik <jgarzik@pobox.com>2005-08-28 19:25:02 -0400
commita8eef8a22232e64be76410100c52038b21bda7ed (patch)
tree100c6e7d12bea013586d540b3d8ca27c451af049 /drivers
parent6c5b90d2c84d557baed56e71729504b467ff3e5b (diff)
downloadop-kernel-dev-a8eef8a22232e64be76410100c52038b21bda7ed.zip
op-kernel-dev-a8eef8a22232e64be76410100c52038b21bda7ed.tar.gz
[PATCH] hostap: Fix null pointer dereference in prism2_pccard_card_present()
With my Buffalo WLI-CF-S11G PC Card kernel oopses every time in prism2_interrupt() when I try load the hostap module. local->hw_priv is null during the first call to prism2_interrupt(). It feels like interrupts are enabled too early, or something. This patch fixes the symptom, but not the cause. Signed-off-by: Kalle Valo <Kalle.Valo@iki.fi> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/hostap/hostap_cs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c
index 491cf49..e1f1eb8 100644
--- a/drivers/net/wireless/hostap/hostap_cs.c
+++ b/drivers/net/wireless/hostap/hostap_cs.c
@@ -212,7 +212,7 @@ static int prism2_event(event_t event, int priority,
static int prism2_pccard_card_present(local_info_t *local)
{
struct hostap_cs_priv *hw_priv = local->hw_priv;
- if (hw_priv->link != NULL &&
+ if (hw_priv != NULL && hw_priv->link != NULL &&
((hw_priv->link->state & (DEV_PRESENT | DEV_CONFIG)) ==
(DEV_PRESENT | DEV_CONFIG)))
return 1;
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