• Maciej W. Rozycki's avatar
    rtc: hctosys: Add missing range error reporting · 7ce9a992
    Maciej W. Rozycki authored
    
    
    Fix an issue with the 32-bit range error path in `rtc_hctosys' where no
    error code is set and consequently the successful preceding call result
    from `rtc_read_time' is propagated to `rtc_hctosys_ret'.  This in turn
    makes any subsequent call to `hctosys_show' incorrectly report in sysfs
    that the system time has been set from this RTC while it has not.
    
    Set the error to ERANGE then if we can't express the result due to an
    overflow.
    Signed-off-by: default avatarMaciej W. Rozycki <macro@linux-mips.org>
    Fixes: b3a5ac42
    
     ("rtc: hctosys: Ensure system time doesn't overflow time_t")
    Cc: stable@vger.kernel.org # 4.17+
    Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
    7ce9a992