[XFS] Fix compile warning, ensure _pagebuf_lookup_pages return value is inited.

SGI Modid: xfs-linux:xfs-kern:166301a

diff --git a/fs/xfs/linux/xfs_buf.c b/fs/xfs/linux/xfs_buf.c
index 57ffeb990731f8de853285f217c3f926813a56eb..ca897a836c14de3ca3ac1ad3ebe171495cc73d27 100644 (file)
--- a/fs/xfs/linux/xfs_buf.c
+++ b/fs/xfs/linux/xfs_buf.c
@@ -475,6 +475,7 @@ _pagebuf_lookup_pages(
                }
                if ((flags & PBF_MAPPED) && !(pb->pb_flags & PBF_MAPPED)) {
                        all_mapped = 1;
+                       rval = 0;
                        goto mapit;
                }
                return 0;
@@ -485,7 +486,7 @@ _pagebuf_lookup_pages(
        if (rval)
                return rval;
 
-       rval = pi = 0;
+       all_mapped = 1;
        blocksize = pb->pb_target->pbr_bsize;
        sectorshift = pb->pb_target->pbr_sshift;
        size = pb->pb_count_desired;
@@ -493,7 +494,7 @@ _pagebuf_lookup_pages(
 
        /* Enter the pages in the page list */
        index = (pb->pb_file_offset - pb->pb_offset) >> PAGE_CACHE_SHIFT;
-       for (all_mapped = 1; pi < page_count; pi++, index++) {
+       for (pi = 0; pi < page_count; pi++, index++) {
                if (pb->pb_pages[pi] == 0) {
                        retries = 0;
                      retry: