2018-06-29 06:28:48

by Karim Eshapa

[permalink] [raw]
Subject: [PATCH] staging:iio:adc:ad7280a: Use GFP_ATOMIC in interrupt handler

Use GFP_ATOMIC rather GFP_KERNEL in interrupt handler,
as GFP_KERNEL may sleep according to slab allocator.

Signed-off-by: Karim Eshapa <[email protected]>
---
drivers/staging/iio/adc/ad7280a.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c
index b736275c10f5..25c4fbc303f7 100644
--- a/drivers/staging/iio/adc/ad7280a.c
+++ b/drivers/staging/iio/adc/ad7280a.c
@@ -692,7 +692,7 @@ static irqreturn_t ad7280_event_handler(int irq, void *private)
unsigned int *channels;
int i, ret;

- channels = kcalloc(st->scan_cnt, sizeof(*channels), GFP_KERNEL);
+ channels = kcalloc(st->scan_cnt, sizeof(*channels), GFP_ATOMIC);
if (!channels)
return IRQ_HANDLED;

--
2.17.1