From 1c90ea2c7eb3b24a07a2f82164323588fb029bc1 Mon Sep 17 00:00:00 2001 From: Daniel Ribeiro Date: Tue, 23 Jun 2009 12:30:58 -0300 Subject: mfd: fix pcap adc locking Release the lock on error. Signed-off-by: Daniel Ribeiro Signed-off-by: Samuel Ortiz --- drivers/mfd/ezx-pcap.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c index 671a7efe86a..c1de4afa89a 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); -- cgit v1.2.3