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[5.17,062/225] iio: dac: ad3552r: fix signedness bug in ad3552r_reset()

Message ID 20220504153115.705133387@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

gregkh@linuxfoundation.org May 4, 2022, 4:45 p.m. UTC 
From: Dan Carpenter <dan.carpenter@oracle.com>

[ 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 <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20220316122354.GA16825@kili
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iio/dac/ad3552r.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/iio/dac/ad3552r.c b/drivers/iio/dac/ad3552r.c
index 97f13c0b9631..e0a93b27e0e8 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);