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From 905889b4a34c753a538015f0b2cdaa0c9e3a4fd5 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
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 <dan.carpenter@oracle.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
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);
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