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authorIngo Molnar <mingo@elte.hu>2010-07-21 21:45:02 +0200
committerIngo Molnar <mingo@elte.hu>2010-07-21 21:45:08 +0200
commitdca45ad8af54963c005393a484ad117b8ba6150f (patch)
tree7c9a6966283a6bb12b54e5680a67d203be292930 /drivers/net/wireless/hostap/hostap_cs.c
parent68c38fc3cb4e5a60f502ee9c45f3dfe70e5165ad (diff)
parentcd5b8f8755a89a57fc8c408d284b8b613f090345 (diff)
Merge branch 'linus' into sched/core
Merge reason: Move from the -rc3 to the almost-rc6 base. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/net/wireless/hostap/hostap_cs.c')
-rw-r--r--drivers/net/wireless/hostap/hostap_cs.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c
index db72461c486b..29b31a694b59 100644
--- a/drivers/net/wireless/hostap/hostap_cs.c
+++ b/drivers/net/wireless/hostap/hostap_cs.c
@@ -594,6 +594,7 @@ static int prism2_config(struct pcmcia_device *link)
local_info_t *local;
int ret = 1;
struct hostap_cs_priv *hw_priv;
+ unsigned long flags;
PDEBUG(DEBUG_FLOW, "prism2_config()\n");
@@ -625,9 +626,15 @@ static int prism2_config(struct pcmcia_device *link)
local->hw_priv = hw_priv;
hw_priv->link = link;
+ /*
+ * Make sure the IRQ handler cannot proceed until at least
+ * dev->base_addr is initialized.
+ */
+ spin_lock_irqsave(&local->irq_init_lock, flags);
+
ret = pcmcia_request_irq(link, prism2_interrupt);
if (ret)
- goto failed;
+ goto failed_unlock;
/*
* This actually configures the PCMCIA socket -- setting up
@@ -636,11 +643,13 @@ static int prism2_config(struct pcmcia_device *link)
*/
ret = pcmcia_request_configuration(link, &link->conf);
if (ret)
- goto failed;
+ goto failed_unlock;
dev->irq = link->irq;
dev->base_addr = link->io.BasePort1;
+ spin_unlock_irqrestore(&local->irq_init_lock, flags);
+
/* Finally, report what we've done */
printk(KERN_INFO "%s: index 0x%02x: ",
dev_info, link->conf.ConfigIndex);
@@ -667,6 +676,8 @@ static int prism2_config(struct pcmcia_device *link)
return ret;
+ failed_unlock:
+ spin_unlock_irqrestore(&local->irq_init_lock, flags);
failed:
kfree(hw_priv);
prism2_release((u_long)link);