parisc: 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>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 68 insertions, 72 deletions

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 8b490d77054f..6bc16809c504 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1021,7 +1021,6 @@ static struct hppa_dma_ops ccio_ops = {
 #ifdef CONFIG_PROC_FS
 static int ccio_proc_info(struct seq_file *m, void *p)
 {
-        int len = 0;
         struct ioc *ioc = ioc_list;
 
         while (ioc != NULL) {
@@ -1031,22 +1030,22 @@ static int ccio_proc_info(struct seq_file *m, void *p)
                 int j;
 #endif
 
-                len += seq_printf(m, "%s\n", ioc->name);
+                seq_printf(m, "%s\n", ioc->name);
                 
-                len += seq_printf(m, "Cujo 2.0 bug    : %s\n",
-                                  (ioc->cujo20_bug ? "yes" : "no"));
+                seq_printf(m, "Cujo 2.0 bug    : %s\n",
+                           (ioc->cujo20_bug ? "yes" : "no"));
                 
-                len += seq_printf(m, "IO PDIR size    : %d bytes (%d entries)\n",
-                               total_pages * 8, total_pages);
+                seq_printf(m, "IO PDIR size    : %d bytes (%d entries)\n",
+                           total_pages * 8, total_pages);
 
 #ifdef CCIO_COLLECT_STATS
-                len += seq_printf(m, "IO PDIR entries : %ld free  %ld used (%d%%)\n",
-                                  total_pages - ioc->used_pages, ioc->used_pages,
-                                  (int)(ioc->used_pages * 100 / total_pages));
+                seq_printf(m, "IO PDIR entries : %ld free  %ld used (%d%%)\n",
+                           total_pages - ioc->used_pages, ioc->used_pages,
+                           (int)(ioc->used_pages * 100 / total_pages));
 #endif
 
-                len += seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n", 
-                                  ioc->res_size, total_pages);
+                seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n",
+                           ioc->res_size, total_pages);
 
 #ifdef CCIO_COLLECT_STATS
                 min = max = ioc->avg_search[0];
@@ -1058,26 +1057,26 @@ static int ccio_proc_info(struct seq_file *m, void *p)
                                 min = ioc->avg_search[j];
                 }
                 avg /= CCIO_SEARCH_SAMPLE;
-                len += seq_printf(m, "  Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
-                                  min, avg, max);
+                seq_printf(m, "  Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
+                           min, avg, max);
 
-                len += seq_printf(m, "pci_map_single(): %8ld calls  %8ld pages (avg %d/1000)\n",
-                                  ioc->msingle_calls, ioc->msingle_pages,
-                                  (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
+                seq_printf(m, "pci_map_single(): %8ld calls  %8ld pages (avg %d/1000)\n",
+                           ioc->msingle_calls, ioc->msingle_pages,
+                           (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
 
                 /* KLUGE - unmap_sg calls unmap_single for each mapped page */
                 min = ioc->usingle_calls - ioc->usg_calls;
                 max = ioc->usingle_pages - ioc->usg_pages;
-                len += seq_printf(m, "pci_unmap_single: %8ld calls  %8ld pages (avg %d/1000)\n",
-                                  min, max, (int)((max * 1000)/min));
+                seq_printf(m, "pci_unmap_single: %8ld calls  %8ld pages (avg %d/1000)\n",
+                           min, max, (int)((max * 1000)/min));
  
-                len += seq_printf(m, "pci_map_sg()    : %8ld calls  %8ld pages (avg %d/1000)\n",
-                                  ioc->msg_calls, ioc->msg_pages,
-                                  (int)((ioc->msg_pages * 1000)/ioc->msg_calls));
+                seq_printf(m, "pci_map_sg()    : %8ld calls  %8ld pages (avg %d/1000)\n",
+                           ioc->msg_calls, ioc->msg_pages,
+                           (int)((ioc->msg_pages * 1000)/ioc->msg_calls));
 
-                len += seq_printf(m, "pci_unmap_sg()  : %8ld calls  %8ld pages (avg %d/1000)\n\n\n",
-                                  ioc->usg_calls, ioc->usg_pages,
-                                  (int)((ioc->usg_pages * 1000)/ioc->usg_calls));
+                seq_printf(m, "pci_unmap_sg()  : %8ld calls  %8ld pages (avg %d/1000)\n\n\n",
+                           ioc->usg_calls, ioc->usg_pages,
+                           (int)((ioc->usg_pages * 1000)/ioc->usg_calls));
 #endif  /* CCIO_COLLECT_STATS */
 
                 ioc = ioc->next;
@@ -1101,7 +1100,6 @@ static const struct file_operations ccio_proc_info_fops = {
 
 static int ccio_proc_bitmap_info(struct seq_file *m, void *p)
 {
-        int len = 0;
         struct ioc *ioc = ioc_list;
 
         while (ioc != NULL) {
@@ -1110,11 +1108,11 @@ static int ccio_proc_bitmap_info(struct seq_file *m, void *p)
 
                 for (j = 0; j < (ioc->res_size / sizeof(u32)); j++) {
                         if ((j & 7) == 0)
-                                len += seq_puts(m, "\n   ");
-                        len += seq_printf(m, "%08x", *res_ptr);
+                                seq_puts(m, "\n   ");
+                        seq_printf(m, "%08x", *res_ptr);
                         res_ptr++;
                 }
-                len += seq_puts(m, "\n\n");
+                seq_puts(m, "\n\n");
                 ioc = ioc->next;
                 break; /* XXX - remove me */
         }
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 1ff1b67e8b27..f07471264689 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1774,37 +1774,35 @@ static int sba_proc_info(struct seq_file *m, void *p)
 #ifdef SBA_COLLECT_STATS
         unsigned long avg = 0, min, max;
 #endif
-        int i, len = 0;
-
-        len += seq_printf(m, "%s rev %d.%d\n",
-                sba_dev->name,
-                (sba_dev->hw_rev & 0x7) + 1,
-                (sba_dev->hw_rev & 0x18) >> 3
-                );
-        len += seq_printf(m, "IO PDIR size    : %d bytes (%d entries)\n",
-                (int) ((ioc->res_size << 3) * sizeof(u64)), /* 8 bits/byte */
-                total_pages);
-
-        len += seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n", 
-                ioc->res_size, ioc->res_size << 3);   /* 8 bits per byte */
-
-        len += seq_printf(m, "LMMIO_BASE/MASK/ROUTE %08x %08x %08x\n",
-                READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_BASE),
-                READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_MASK),
-                READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_ROUTE)
-                );
+        int i;
+
+        seq_printf(m, "%s rev %d.%d\n",
+                   sba_dev->name,
+                   (sba_dev->hw_rev & 0x7) + 1,
+                   (sba_dev->hw_rev & 0x18) >> 3);
+        seq_printf(m, "IO PDIR size    : %d bytes (%d entries)\n",
+                   (int)((ioc->res_size << 3) * sizeof(u64)), /* 8 bits/byte */
+                   total_pages);
+
+        seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n",
+                   ioc->res_size, ioc->res_size << 3);   /* 8 bits per byte */
+
+        seq_printf(m, "LMMIO_BASE/MASK/ROUTE %08x %08x %08x\n",
+                   READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_BASE),
+                   READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_MASK),
+                   READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_ROUTE));
 
         for (i=0; i<4; i++)
-                len += seq_printf(m, "DIR%d_BASE/MASK/ROUTE %08x %08x %08x\n", i,
-                        READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_BASE  + i*0x18),
-                        READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_MASK  + i*0x18),
-                        READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_ROUTE + i*0x18)
-                );
+                seq_printf(m, "DIR%d_BASE/MASK/ROUTE %08x %08x %08x\n",
+                           i,
+                           READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_BASE  + i*0x18),
+                           READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_MASK  + i*0x18),
+                           READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_ROUTE + i*0x18));
 
 #ifdef SBA_COLLECT_STATS
-        len += seq_printf(m, "IO PDIR entries : %ld free  %ld used (%d%%)\n",
-                total_pages - ioc->used_pages, ioc->used_pages,
-                (int) (ioc->used_pages * 100 / total_pages));
+        seq_printf(m, "IO PDIR entries : %ld free  %ld used (%d%%)\n",
+                   total_pages - ioc->used_pages, ioc->used_pages,
+                   (int)(ioc->used_pages * 100 / total_pages));
 
         min = max = ioc->avg_search[0];
         for (i = 0; i < SBA_SEARCH_SAMPLE; i++) {
@@ -1813,26 +1811,26 @@ static int sba_proc_info(struct seq_file *m, void *p)
                 if (ioc->avg_search[i] < min) min = ioc->avg_search[i];
         }
         avg /= SBA_SEARCH_SAMPLE;
-        len += seq_printf(m, "  Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
-                min, avg, max);
+        seq_printf(m, "  Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
+                   min, avg, max);
 
-        len += seq_printf(m, "pci_map_single(): %12ld calls  %12ld pages (avg %d/1000)\n",
-                ioc->msingle_calls, ioc->msingle_pages,
-                (int) ((ioc->msingle_pages * 1000)/ioc->msingle_calls));
+        seq_printf(m, "pci_map_single(): %12ld calls  %12ld pages (avg %d/1000)\n",
+                   ioc->msingle_calls, ioc->msingle_pages,
+                   (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
 
         /* KLUGE - unmap_sg calls unmap_single for each mapped page */
         min = ioc->usingle_calls;
         max = ioc->usingle_pages - ioc->usg_pages;
-        len += seq_printf(m, "pci_unmap_single: %12ld calls  %12ld pages (avg %d/1000)\n",
-                min, max, (int) ((max * 1000)/min));
+        seq_printf(m, "pci_unmap_single: %12ld calls  %12ld pages (avg %d/1000)\n",
+                   min, max, (int)((max * 1000)/min));
 
-        len += seq_printf(m, "pci_map_sg()    : %12ld calls  %12ld pages (avg %d/1000)\n",
-                ioc->msg_calls, ioc->msg_pages, 
-                (int) ((ioc->msg_pages * 1000)/ioc->msg_calls));
+        seq_printf(m, "pci_map_sg()    : %12ld calls  %12ld pages (avg %d/1000)\n",
+                   ioc->msg_calls, ioc->msg_pages,
+                   (int)((ioc->msg_pages * 1000)/ioc->msg_calls));
 
-        len += seq_printf(m, "pci_unmap_sg()  : %12ld calls  %12ld pages (avg %d/1000)\n",
-                ioc->usg_calls, ioc->usg_pages,
-                (int) ((ioc->usg_pages * 1000)/ioc->usg_calls));
+        seq_printf(m, "pci_unmap_sg()  : %12ld calls  %12ld pages (avg %d/1000)\n",
+                   ioc->usg_calls, ioc->usg_pages,
+                   (int)((ioc->usg_pages * 1000)/ioc->usg_calls));
 #endif
 
         return 0;
@@ -1858,14 +1856,14 @@ sba_proc_bitmap_info(struct seq_file *m, void *p)
         struct sba_device *sba_dev = sba_list;
         struct ioc *ioc = &sba_dev->ioc[0];     /* FIXME: Multi-IOC support! */
         unsigned int *res_ptr = (unsigned int *)ioc->res_map;
-        int i, len = 0;
+        int i;
 
         for (i = 0; i < (ioc->res_size/sizeof(unsigned int)); ++i, ++res_ptr) {
                 if ((i & 7) == 0)
-                        len += seq_printf(m, "\n   ");
-                len += seq_printf(m, " %08x", *res_ptr);
+                        seq_puts(m, "\n   ");
+                seq_printf(m, " %08x", *res_ptr);
         }
-        len += seq_printf(m, "\n");
+        seq_putc(m, '\n');
 
         return 0;
 }