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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2019-08-17 08:56:04 +0200 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2019-08-21 09:57:23 +0200 |
| commit | a6f26606ddd03c5eab8b2132f1bfaa768c06158f (patch) | |
| tree | ba47b9dfdc744ccfbf00ffc09f8b642887575232 /drivers/rtc/rtc-rv3029c2.c | |
| parent | rtc: ds1672: remove unnecessary check (diff) | |
| download | linux-a6f26606ddd03c5eab8b2132f1bfaa768c06158f.tar.xz linux-a6f26606ddd03c5eab8b2132f1bfaa768c06158f.zip | |
rtc: rv3029: revert error handling patch to rv3029_eeprom_write()
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: 97f5b0379c38 ("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>
Diffstat (limited to 'drivers/rtc/rtc-rv3029c2.c')
| -rw-r--r-- | drivers/rtc/rtc-rv3029c2.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/rtc/rtc-rv3029c2.c b/drivers/rtc/rtc-rv3029c2.c index 4a0e8ec015cc..4cdf6588e1d9 100644 --- a/drivers/rtc/rtc-rv3029c2.c +++ b/drivers/rtc/rtc-rv3029c2.c @@ -278,13 +278,13 @@ 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); @@ -300,11 +300,11 @@ 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, |