rtc: remove use of seq_printf return value

The seq_printf return value, because it's frequently misused,
will eventually be converted to void.

See: commit 1f33c41c03da ("seq_file: Rename seq_overflow() to
     seq_has_overflowed() and make public")

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

4 files changed, 34 insertions, 28 deletions

diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 5b2e76159b41..87647f459198 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -459,23 +459,25 @@ static int cmos_procfs(struct device *dev, struct seq_file *seq)
         /* NOTE:  at least ICH6 reports battery status using a different
          * (non-RTC) bit; and SQWE is ignored on many current systems.
          */
-        return seq_printf(seq,
-                        "periodic_IRQ\t: %s\n"
-                        "update_IRQ\t: %s\n"
-                        "HPET_emulated\t: %s\n"
-                        // "square_wave\t: %s\n"
-                        "BCD\t\t: %s\n"
-                        "DST_enable\t: %s\n"
-                        "periodic_freq\t: %d\n"
-                        "batt_status\t: %s\n",
-                        (rtc_control & RTC_PIE) ? "yes" : "no",
-                        (rtc_control & RTC_UIE) ? "yes" : "no",
-                        is_hpet_enabled() ? "yes" : "no",
-                        // (rtc_control & RTC_SQWE) ? "yes" : "no",
-                        (rtc_control & RTC_DM_BINARY) ? "no" : "yes",
-                        (rtc_control & RTC_DST_EN) ? "yes" : "no",
-                        cmos->rtc->irq_freq,
-                        (valid & RTC_VRT) ? "okay" : "dead");
+        seq_printf(seq,
+                   "periodic_IRQ\t: %s\n"
+                   "update_IRQ\t: %s\n"
+                   "HPET_emulated\t: %s\n"
+                   // "square_wave\t: %s\n"
+                   "BCD\t\t: %s\n"
+                   "DST_enable\t: %s\n"
+                   "periodic_freq\t: %d\n"
+                   "batt_status\t: %s\n",
+                   (rtc_control & RTC_PIE) ? "yes" : "no",
+                   (rtc_control & RTC_UIE) ? "yes" : "no",
+                   is_hpet_enabled() ? "yes" : "no",
+                   // (rtc_control & RTC_SQWE) ? "yes" : "no",
+                   (rtc_control & RTC_DM_BINARY) ? "no" : "yes",
+                   (rtc_control & RTC_DST_EN) ? "yes" : "no",
+                   cmos->rtc->irq_freq,
+                   (valid & RTC_VRT) ? "okay" : "dead");
+
+        return 0;
 }
 
 #else
diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c
index 129add77065d..12b07158a366 100644
--- a/drivers/rtc/rtc-ds1305.c
+++ b/drivers/rtc/rtc-ds1305.c
@@ -434,9 +434,9 @@ static int ds1305_proc(struct device *dev, struct seq_file *seq)
         }
 
 done:
-        return seq_printf(seq,
-                        "trickle_charge\t: %s%s\n",
-                        diodes, resistors);
+        seq_printf(seq, "trickle_charge\t: %s%s\n", diodes, resistors);
+
+        return 0;
 }
 
 #else
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c
index 3a6fd3a8a2ec..548ea6f6f384 100644
--- a/drivers/rtc/rtc-mrst.c
+++ b/drivers/rtc/rtc-mrst.c
@@ -277,13 +277,15 @@ static int mrst_procfs(struct device *dev, struct seq_file *seq)
         valid = vrtc_cmos_read(RTC_VALID);
         spin_unlock_irq(&rtc_lock);
 
-        return seq_printf(seq,
-                        "periodic_IRQ\t: %s\n"
-                        "alarm\t\t: %s\n"
-                        "BCD\t\t: no\n"
-                        "periodic_freq\t: daily (not adjustable)\n",
-                        (rtc_control & RTC_PIE) ? "on" : "off",
-                        (rtc_control & RTC_AIE) ? "on" : "off");
+        seq_printf(seq,
+                   "periodic_IRQ\t: %s\n"
+                   "alarm\t\t: %s\n"
+                   "BCD\t\t: no\n"
+                   "periodic_freq\t: daily (not adjustable)\n",
+                   (rtc_control & RTC_PIE) ? "on" : "off",
+                   (rtc_control & RTC_AIE) ? "on" : "off");
+
+        return 0;
 }
 
 #else
diff --git a/drivers/rtc/rtc-tegra.c b/drivers/rtc/rtc-tegra.c
index d948277057d8..60232bd366ef 100644
--- a/drivers/rtc/rtc-tegra.c
+++ b/drivers/rtc/rtc-tegra.c
@@ -261,7 +261,9 @@ static int tegra_rtc_proc(struct device *dev, struct seq_file *seq)
         if (!dev || !dev->driver)
                 return 0;
 
-        return seq_printf(seq, "name\t\t: %s\n", dev_name(dev));
+        seq_printf(seq, "name\t\t: %s\n", dev_name(dev));
+
+        return 0;
 }
 
 static irqreturn_t tegra_rtc_irq_handler(int irq, void *data)