Merge branch 'akpm' (patches from Andrew)

Merge misc fixes from Andrew Morton:
 "13 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm: add missing __PAGETABLE_{PUD,PMD}_FOLDED defines
  mm: page_alloc: revert inadvertent !__GFP_FS retry behavior change
  kernel/sys.c: fix UNAME26 for 4.0
  mm: memcontrol: use "max" instead of "infinity" in control knobs
  zram: use proper type to update max_used_pages
  drivers/rtc/rtc-ds1685.c: fix conditional in ds1685_rtc_sysfs_time_regs_{show,store}
  nilfs2: fix potential memory overrun on inode
  scripts/gdb: add empty package initialization script
  rtc: ds1685: remove superfluous checks for out-of-range u8 values
  rtc: ds1685: fix ds1685_rtc_alarm_irq_enable build error
  memcg: fix low limit calculation
  mm/nommu: fix memory leak
  ocfs2: update web page + git tree in documentation

2 files changed, 9 insertions, 11 deletions

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 8e233edd7a09..871bd3550cb0 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -528,7 +528,7 @@ out_cleanup:
 static inline void update_used_max(struct zram *zram,
 					const unsigned long pages)
 {
-	int old_max, cur_max;
+	unsigned long old_max, cur_max;
 
 	old_max = atomic_long_read(&zram->stats.max_used_pages);
 
diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c
index 8c3bfcb115b7..803869c7d7c2 100644
--- a/drivers/rtc/rtc-ds1685.c
+++ b/drivers/rtc/rtc-ds1685.c
@@ -399,21 +399,21 @@ ds1685_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 	 * of this RTC chip.  We check for it anyways in case support is
 	 * added in the future.
 	 */
-	if (unlikely((seconds >= 0xc0) && (seconds <= 0xff)))
+	if (unlikely(seconds >= 0xc0))
 		alrm->time.tm_sec = -1;
 	else
 		alrm->time.tm_sec = ds1685_rtc_bcd2bin(rtc, seconds,
 						       RTC_SECS_BCD_MASK,
 						       RTC_SECS_BIN_MASK);
 
-	if (unlikely((minutes >= 0xc0) && (minutes <= 0xff)))
+	if (unlikely(minutes >= 0xc0))
 		alrm->time.tm_min = -1;
 	else
 		alrm->time.tm_min = ds1685_rtc_bcd2bin(rtc, minutes,
 						       RTC_MINS_BCD_MASK,
 						       RTC_MINS_BIN_MASK);
 
-	if (unlikely((hours >= 0xc0) && (hours <= 0xff)))
+	if (unlikely(hours >= 0xc0))
 		alrm->time.tm_hour = -1;
 	else
 		alrm->time.tm_hour = ds1685_rtc_bcd2bin(rtc, hours,
@@ -472,13 +472,13 @@ ds1685_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 	 * field, and we only support four fields.  We put the support
 	 * here anyways for the future.
 	 */
-	if (unlikely((seconds >= 0xc0) && (seconds <= 0xff)))
+	if (unlikely(seconds >= 0xc0))
 		seconds = 0xff;
 
-	if (unlikely((minutes >= 0xc0) && (minutes <= 0xff)))
+	if (unlikely(minutes >= 0xc0))
 		minutes = 0xff;
 
-	if (unlikely((hours >= 0xc0) && (hours <= 0xff)))
+	if (unlikely(hours >= 0xc0))
 		hours = 0xff;
 
 	alrm->time.tm_mon	= -1;
@@ -528,7 +528,6 @@ ds1685_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 /* ----------------------------------------------------------------------- */
 /* /dev/rtcX Interface functions */
 
-#ifdef CONFIG_RTC_INTF_DEV
 /**
  * ds1685_rtc_alarm_irq_enable - replaces ioctl() RTC_AIE on/off.
  * @dev: pointer to device structure.
@@ -557,7 +556,6 @@ ds1685_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 
 	return 0;
 }
-#endif
 /* ----------------------------------------------------------------------- */
 
 
@@ -1612,7 +1610,7 @@ ds1685_rtc_sysfs_time_regs_show(struct device *dev,
 		ds1685_rtc_sysfs_time_regs_lookup(attr->attr.name, false);
 
 	/* Make sure we actually matched something. */
-	if (!bcd_reg_info && !bin_reg_info)
+	if (!bcd_reg_info || !bin_reg_info)
 		return -EINVAL;
 
 	/* bcd_reg_info->reg == bin_reg_info->reg. */
@@ -1650,7 +1648,7 @@ ds1685_rtc_sysfs_time_regs_store(struct device *dev,
 		return -EINVAL;
 
 	/* Make sure we actually matched something. */
-	if (!bcd_reg_info && !bin_reg_info)
+	if (!bcd_reg_info || !bin_reg_info)
 		return -EINVAL;
 
 	/* Check for a valid range. */