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Commit 1c90ea2c authored by Daniel Ribeiro's avatar Daniel Ribeiro Committed by Samuel Ortiz
Browse files

mfd: fix pcap adc locking 



Release the lock on error.

Signed-off-by: default avatarDaniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 992bb253

drivers/mfd/ezx-pcap.c

+3 −1
Original line number Diff line number Diff line
@@ -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);