pcap_adc_irq() calls mutex_lock(), while it is registered
as nonthreaded irq handler.
The patch makes a switch to threaded irq handling.
Compile tested only.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshi...@ispras.ru>
---
drivers/mfd/ezx-pcap.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index 2ed774e7d342..b27830035e36 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -485,8 +485,8 @@ static int ezx_pcap_probe(struct spi_device *spi)
adc_irq = pcap_to_irq(pcap, (pdata->config & PCAP_SECOND_PORT) ?
PCAP_IRQ_ADCDONE2 : PCAP_IRQ_ADCDONE);
- ret = devm_request_irq(&spi->dev, adc_irq, pcap_adc_irq, 0, "ADC",
- pcap);
+ ret = devm_request_threaded_irq(&spi->dev, adc_irq, NULL,
+ pcap_adc_irq, 0, "ADC", pcap);
if (ret)
goto free_irqchip;
--
1.8.3.2
--
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