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rtc: Move variable into switch case statement

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When building with automatic stack variable initialization, GCC 12
complains about variables defined outside of switch case statements.
Move the variable into the case that uses it, which silences the warning:

drivers/rtc/dev.c: In function 'rtc_dev_ioctl':
drivers/rtc/dev.c:394:30: warning: statement will never be executed [-Wswitch-unreachable]
  394 |                         long offset;
      |                              ^~~~~~

Fixes: 6a8af1b656 ("rtc: add parameter ioctl")
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211209043915.1378393-1-keescook@chromium.org
This commit is contained in:
Kees Cook 2021-12-08 20:39:15 -08:00 committed by Alexandre Belloni
parent 7b69b54aaa
commit ba52eac083
1 changed files with 3 additions and 3 deletions
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6
drivers/rtc/dev.c
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@ -391,14 +391,14 @@ static long rtc_dev_ioctl(struct file *file,
}
switch(param.param) {
long offset;
case RTC_PARAM_FEATURES:
if (param.index != 0)
err = -EINVAL;
param.uvalue = rtc->features[0];
break;
case RTC_PARAM_CORRECTION:
case RTC_PARAM_CORRECTION: {
long offset;
mutex_unlock(&rtc->ops_lock);
if (param.index != 0)
return -EINVAL;
@ -407,7 +407,7 @@ static long rtc_dev_ioctl(struct file *file,
if (err == 0)
param.svalue = offset;
break;
}
default:
if (rtc->ops->param_get)
err = rtc->ops->param_get(rtc->dev.parent, &param);