[PATCH 4/6] i2c: npcm: Fix error detection

[Andrew Goodbody]

Testing an unisgned member of a struct to be <= 0 will only detect the
case when it is 0. So correct this error test to a working version that
will behave as expected.

Signed-off-by: Andrew Goodbody <andrew.goodbody at linaro.org>
---
 drivers/i2c/npcm_i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/npcm_i2c.c b/drivers/i2c/npcm_i2c.c
index bff0d04f1a5ae2c261657a5776b38e4ab6ad4d28..d57237a6df167d579ab4b8d45f3989a8cac0fc68 100644
--- a/drivers/i2c/npcm_i2c.c
+++ b/drivers/i2c/npcm_i2c.c
@@ -573,7 +573,7 @@ static int npcm_i2c_probe(struct udevice *dev)
 		return ret;
 	}
 	bus->apb_clk = clk_get_rate(&clk);
-	if (bus->apb_clk <= 0) {
+	if (!bus->apb_clk || IS_ERR_VALUE(bus->apb_clk)) {
 		printf("%s: fail to get rate\n", __func__);
 		return -EINVAL;
 	}

-- 
2.47.3