[U-Boot] [PATCH 3/9] dm: rtc: Correct rtc_read32() return value

[Simon Glass]

The current check is incorrect and will fail when any non-zero byte is read.
Fix it.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 drivers/rtc/rtc-uclass.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-uclass.c b/drivers/rtc/rtc-uclass.c
index fe74c69..300e9b3 100644
--- a/drivers/rtc/rtc-uclass.c
+++ b/drivers/rtc/rtc-uclass.c
@@ -68,7 +68,7 @@ int rtc_read32(struct udevice *dev, unsigned int reg, u32 *valuep)
 
 	for (i = 0; i < sizeof(value); i++) {
 		ret = rtc_read8(dev, reg + i);
-		if (ret)
+		if (ret < 0)
 			return ret;
 		value |= ret << (i << 3);
 	}
-- 
2.6.0.rc2.230.g3dd15c0