From 905889b4a34c753a538015f0b2cdaa0c9e3a4fd5 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 9 Feb 2019 12:03:52 +0300 Subject: [PATCH] iio: chemical: sps30: fix a loop timeout test The "while (tries--) {" loop is a postop so it exits with "tries" set to -1. Fixes: 232e0f6ddeae ("iio: chemical: add support for Sensirion SPS30 sensor") Signed-off-by: Dan Carpenter Signed-off-by: Jonathan Cameron --- drivers/iio/chemical/sps30.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/chemical/sps30.c b/drivers/iio/chemical/sps30.c index e03a28a67146..375df5060ed5 100644 --- a/drivers/iio/chemical/sps30.c +++ b/drivers/iio/chemical/sps30.c @@ -210,7 +210,7 @@ static int sps30_do_meas(struct sps30_state *state, s32 *data, int size) msleep_interruptible(300); } - if (!tries) + if (tries == -1) return -ETIMEDOUT; ret = sps30_do_cmd(state, SPS30_READ_DATA, tmp, sizeof(int) * size);