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rtc: rv3029: revert error handling patch to rv3029_eeprom_write()

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[ Upstream commit a6f26606ddd03c5eab8b2132f1bfaa768c06158f ]

My error handling "cleanup" was totally wrong.  Both the "err" and "ret"
variables are required.  The "err" variable holds the error codes for
rv3029_eeprom_enter/exit() and the "ret" variable holds the error codes
for if actual write fails.  In my patch if the write failed, the
function probably still returned success.

Reported-by: Tom Evans <tom.evans@motec.com.au>
Fixes: 97f5b0379c ("rtc: rv3029: Clean up error handling in rv3029_eeprom_write()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20190817065604.GB29951@mwanda
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter
2019-08-17 09:56:04 +03:00
committed by Greg Kroah-Hartman
parent 9f2d3e495d
commit ae0929cf97
1 changed files with 8 additions and 8 deletions
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16
drivers/rtc/rtc-rv3029c2.c
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@@ -282,13 +282,13 @@ static int rv3029_eeprom_read(struct device *dev, u8 reg,
static int rv3029_eeprom_write(struct device *dev, u8 reg,
u8 const buf[], size_t len)
{
int ret;
int ret, err;
size_t i;
u8 tmp;
ret = rv3029_eeprom_enter(dev);
if (ret < 0)
return ret;
err = rv3029_eeprom_enter(dev);
if (err < 0)
return err;
for (i = 0; i < len; i++, reg++) {
ret = rv3029_read_regs(dev, reg, &tmp, 1);
@@ -304,11 +304,11 @@ static int rv3029_eeprom_write(struct device *dev, u8 reg,
break;
}
ret = rv3029_eeprom_exit(dev);
if (ret < 0)
return ret;
err = rv3029_eeprom_exit(dev);
if (err < 0)
return err;
return 0;
return ret;
}
static int rv3029_eeprom_update_bits(struct device *dev,