fs/ntfs3: Correct use bh_read

[sfrench/cifs-2.6.git] / fs / ntfs3 / file.c

diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index a5a30a24ce5dfa70d670826d1b5ac16a668d06be..5691f04e6751a76427a576512f391abdb409ee11 100644 (file)
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -188,6 +188,7 @@ static int ntfs_zero_range(struct inode *inode, u64 vbo, u64 vbo_to)
        u32 bh_next, bh_off, to;
        sector_t iblock;
        struct folio *folio;
+       bool dirty = false;
 
        for (; idx < idx_end; idx += 1, from = 0) {
                page_off = (loff_t)idx << PAGE_SHIFT;
@@ -223,29 +224,27 @@ static int ntfs_zero_range(struct inode *inode, u64 vbo, u64 vbo_to)
                        /* Ok, it's mapped. Make sure it's up-to-date. */
                        if (folio_test_uptodate(folio))
                                set_buffer_uptodate(bh);
-
-                       if (!buffer_uptodate(bh)) {
-                               err = bh_read(bh, 0);
-                               if (err < 0) {
-                                       folio_unlock(folio);
-                                       folio_put(folio);
-                                       goto out;
-                               }
+                       else if (bh_read(bh, 0) < 0) {
+                               err = -EIO;
+                               folio_unlock(folio);
+                               folio_put(folio);
+                               goto out;
                        }
 
                        mark_buffer_dirty(bh);
-
                } while (bh_off = bh_next, iblock += 1,
                         head != (bh = bh->b_this_page));
 
                folio_zero_segment(folio, from, to);
+               dirty = true;
 
                folio_unlock(folio);
                folio_put(folio);
                cond_resched();
        }
 out:
-       mark_inode_dirty(inode);
+       if (dirty)
+               mark_inode_dirty(inode);
        return err;
 }