[PATCH] power_supply: generic-adc-battery: Fix checking if none of the channels are supported

[Axel Lin <axel.lin@ingics.com>]

If none of the channels are supported, index is 0.
Also ensure to return error code instead of 0 in goto second_mem_fail path.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
 drivers/power/generic-adc-battery.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/power/generic-adc-battery.c b/drivers/power/generic-adc-battery.c
index 8cb5d7f..59a1421 100644
--- a/drivers/power/generic-adc-battery.c
+++ b/drivers/power/generic-adc-battery.c
@@ -299,8 +299,10 @@ static int gab_probe(struct platform_device *pdev)
 	}
 
 	/* none of the channels are supported so let's bail out */
-	if (index == ARRAY_SIZE(gab_chan_name))
+	if (index == 0) {
+		ret = -ENODEV;
 		goto second_mem_fail;
+	}
 
 	/*
 	 * Total number of properties is equal to static properties
-- 
1.8.1.2