From 69b0a0dfc1823506ca1f95c5ec609045b2484053 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 16 Mar 2022 15:23:54 +0300 Subject: [PATCH] iio: dac: ad3552r: fix signedness bug in ad3552r_reset() [ Upstream commit 460bfa65b0de72f4d8a808bc7cfb1cb591a95b18 ] The "val" variable is used to store either negative error codes from ad3552r_read_reg_wrapper() or positive u16 values on success. It needs to be signed for the error handling to work correctly. Fixes: 8f2b54824b28 ("drivers:iio:dac: Add AD3552R driver support") Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/20220316122354.GA16825@kili Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin --- drivers/iio/dac/ad3552r.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/dac/ad3552r.c b/drivers/iio/dac/ad3552r.c index 97f13c0b96312..e0a93b27e0e81 100644 --- a/drivers/iio/dac/ad3552r.c +++ b/drivers/iio/dac/ad3552r.c @@ -656,7 +656,7 @@ static int ad3552r_reset(struct ad3552r_desc *dac) { struct reg_addr_pool addr; int ret; - u16 val; + int val; dac->gpio_reset = devm_gpiod_get_optional(&dac->spi->dev, "reset", GPIOD_OUT_LOW);