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authorSimon Glass <sjg@chromium.org>2015-10-18 15:55:31 -0600
committerSimon Glass <sjg@chromium.org>2015-10-21 07:46:50 -0600
commit9a4eb5977ad5dc2516e1219613258e30b10d27bd (patch)
tree4dcf19a25f13ac70ea08c670bc4e1c70b0816af1 /drivers
parentb26eb88658b9fbb87c5bae22cede05de3124abb7 (diff)
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> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/rtc/rtc-uclass.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-uclass.c b/drivers/rtc/rtc-uclass.c
index fe74c69f97..300e9b30ec 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);
}