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

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

Signed-off-by: Simon Glass sjg@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); }