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authorDominik Brodowski <linux@dominikbrodowski.net>2010-01-16 01:14:38 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2010-02-17 17:48:17 +0100
commit64d8d46f5f501a19aec4db7ff93faf1b831d05ed (patch)
treeeae12e7cfea8259449eb14da6e449938773ac1fe /drivers/pcmcia/pcmcia_resource.c
parent9e86749cff70fca505c7c1a9dc760d193f27a059 (diff)
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pcmcia: properly lock skt->irq, skt->irq_mask
Tested-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'drivers/pcmcia/pcmcia_resource.c')
-rw-r--r--drivers/pcmcia/pcmcia_resource.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c
index f365ecb9c5c..f0de7b8b123 100644
--- a/drivers/pcmcia/pcmcia_resource.c
+++ b/drivers/pcmcia/pcmcia_resource.c
@@ -419,7 +419,9 @@ static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
dev_dbg(&s->dev, "IRQ attributes must match assigned ones\n");
return -EINVAL;
}
+ mutex_lock(&s->ops_mutex);
if (s->irq.AssignedIRQ != req->AssignedIRQ) {
+ mutex_unlock(&s->ops_mutex);
dev_dbg(&s->dev, "IRQ must match assigned one\n");
return -EINVAL;
}
@@ -434,6 +436,7 @@ static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req)
#ifdef CONFIG_PCMCIA_PROBE
pcmcia_used_irq[req->AssignedIRQ]--;
#endif
+ mutex_unlock(&s->ops_mutex);
return 0;
} /* pcmcia_release_irq */