Gitweb: http://git.kernel.org/linus/1c90ea2c7eb3b24a07a2f82164323588fb029bc1
Commit: 1c90ea2c7eb3b24a07a2f82164323588fb029bc1
Parent: 992bb253cd6f08129edcb42b90e6c388ebf605f8
Author: Daniel Ribeiro <drwyrm@gmail.com>
AuthorDate: Tue Jun 23 12:30:58 2009 -0300
Committer: Samuel Ortiz <sameol@linux.intel.com>
CommitDate: Fri Jul 3 11:54:57 2009 +0200
mfd: fix pcap adc locking
Release the lock on error.
Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
drivers/mfd/ezx-pcap.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index 671a7ef..c1de4af 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -238,8 +238,10 @@ static irqreturn_t pcap_adc_irq(int irq, void *_pcap)
mutex_lock(&pcap->adc_mutex);
req = pcap->adc_queue[pcap->adc_head];
- if (WARN(!req, KERN_WARNING "adc irq without pending request\n"))
+ if (WARN(!req, KERN_WARNING "adc irq without pending request\n")) {
+ mutex_unlock(&pcap->adc_mutex);
return IRQ_HANDLED;
+ }
/* read requested channels results */
ezx_pcap_read(pcap, PCAP_REG_ADC, &tmp);
--
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