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| author | Arnd Bergmann <arnd@arndb.de> | 2015-05-13 00:27:02 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2015-06-25 02:13:46 +0300 |
| commit | cd1420d3a90944e677987ca8c56f1cd22ecd1b51 (patch) | |
| tree | 977a3495a6a383bef93e69c739bc1bf30ebb9df4 /drivers/rtc/rtc-pcf8563.c | |
| parent | e3edd67141a1ea5294e54b17fee5becf1090f5d4 (diff) | |
| download | linux-cd1420d3a90944e677987ca8c56f1cd22ecd1b51.tar.xz | |
rtc: pfc8563: fix uninitialized variable warning
Gcc is unable to prove that alm_pending is always initialized
when it is used, so it prints a harmless warning:
drivers/rtc/rtc-pcf8563.c: In function 'pcf8563_probe':
drivers/rtc/rtc-pcf8563.c:449:5: warning: 'alm_pending' may be used uninitialized in this function [-Wmaybe-uninitialized]
This uses the same conditional expression that is used inside of
the pcf8563_get_alarm_mode() function, to help gcc figure it out
and shut up that warning, and make the ARM defconfigs build again
with no warnings.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: a45d528aab8b ("rtc: pcf8563: clear expired alarm at boot time")
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'drivers/rtc/rtc-pcf8563.c')
| -rw-r--r-- | drivers/rtc/rtc-pcf8563.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c index fc564d359941..8bba022be946 100644 --- a/drivers/rtc/rtc-pcf8563.c +++ b/drivers/rtc/rtc-pcf8563.c @@ -432,7 +432,7 @@ static int pcf8563_probe(struct i2c_client *client, } err = pcf8563_get_alarm_mode(client, NULL, &alm_pending); - if (err < 0) { + if (err) { dev_err(&client->dev, "%s: read error\n", __func__); return err; } |