s390: 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>
Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 11 insertions, 7 deletions

diff --git a/arch/s390/pci/pci_debug.c b/arch/s390/pci/pci_debug.c
index 3229a2e570df..c22d4402ae45 100644
--- a/arch/s390/pci/pci_debug.c
+++ b/arch/s390/pci/pci_debug.c
@@ -45,8 +45,10 @@ static int pci_perf_show(struct seq_file *m, void *v)
 
         if (!zdev)
                 return 0;
-        if (!zdev->fmb)
-                return seq_printf(m, "FMB statistics disabled\n");
+        if (!zdev->fmb) {
+                seq_puts(m, "FMB statistics disabled\n");
+                return 0;
+        }
 
         /* header */
         seq_printf(m, "FMB @ %p\n", zdev->fmb);
diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c
index b3f791b2c1f8..20314aad7ab7 100644
--- a/drivers/s390/cio/blacklist.c
+++ b/drivers/s390/cio/blacklist.c
@@ -330,18 +330,20 @@ cio_ignore_proc_seq_show(struct seq_file *s, void *it)
         if (!iter->in_range) {
                 /* First device in range. */
                 if ((iter->devno == __MAX_SUBCHANNEL) ||
-                    !is_blacklisted(iter->ssid, iter->devno + 1))
+                    !is_blacklisted(iter->ssid, iter->devno + 1)) {
                         /* Singular device. */
-                        return seq_printf(s, "0.%x.%04x\n",
-                                          iter->ssid, iter->devno);
+                        seq_printf(s, "0.%x.%04x\n", iter->ssid, iter->devno);
+                        return 0;
+                }
                 iter->in_range = 1;
-                return seq_printf(s, "0.%x.%04x-", iter->ssid, iter->devno);
+                seq_printf(s, "0.%x.%04x-", iter->ssid, iter->devno);
+                return 0;
         }
         if ((iter->devno == __MAX_SUBCHANNEL) ||
             !is_blacklisted(iter->ssid, iter->devno + 1)) {
                 /* Last device in range. */
                 iter->in_range = 0;
-                return seq_printf(s, "0.%x.%04x\n", iter->ssid, iter->devno);
+                seq_printf(s, "0.%x.%04x\n", iter->ssid, iter->devno);
         }
         return 0;
 }