From 457e587fbca4e622146643811215f636275a56e0 Mon Sep 17 00:00:00 2001 From: Luis de Bethencourt Date: Wed, 22 Jun 2016 20:43:30 +0100 Subject: [PATCH] staging: iio: accel: fix error check commit ef3149eb3ddb7f9125e11c90f8330e371b55cffd upstream. sca3000_read_ctrl_reg() returns a negative number on failure, check for this instead of zero. Signed-off-by: Luis de Bethencourt Signed-off-by: Jonathan Cameron Signed-off-by: Ben Hutchings --- drivers/staging/iio/accel/sca3000_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c index a44a70589db9..74ceba07d38b 100644 --- a/drivers/staging/iio/accel/sca3000_core.c +++ b/drivers/staging/iio/accel/sca3000_core.c @@ -579,7 +579,7 @@ static ssize_t sca3000_read_frequency(struct device *dev, goto error_ret_mut; ret = sca3000_read_ctrl_reg(st, SCA3000_REG_CTRL_SEL_OUT_CTRL); mutex_unlock(&st->lock); - if (ret) + if (ret < 0) goto error_ret; val = ret; if (base_freq > 0) -- 2.39.2