fs/affs/file.c: unlock/release page on error

When affs_bread_ino() fails, correctly unlock the page and release the page cache with proper error value. All write_end() should unlock/release the page that was locked by write_beg().

Signed-off-by Taesoo Kim <[email protected]>

---
  fs/affs/file.c | 13 +++++++++----

  1 file changed, 9 insertions(+), 4 deletions(-)

fs/affs/file.c +4 -2

index d2468bf..15d07a0 100644
@@ -699,8 +699,10 @@ static int affs_write_end_ofs(struct file *file, struct
 address_space *mapping,
        boff = tmp % bsize;
        if (boff) {
                bh = affs_bread_ino(inode, bidx, 0);
-             if (IS_ERR(bh))
-                     return PTR_ERR(bh);
+             if (IS_ERR(bh)) {
+                     written = PTR_ERR(bh);
+                     goto err;
+             }
                tmp = min(bsize - boff, to - from);
                BUG_ON(boff + tmp > bsize || tmp > bsize);

               memcpy(AFFS_DATA(bh) + boff, data + from, tmp);

fs/affs/file.c +4 -2

@@ -712,8 +714,10 @@ static int affs_write_end_ofs(struct file *file, struct
 address_space *mapping,
                bidx++;
        } else if (bidx) {
                bh = affs_bread_ino(inode, bidx - 1, 0);
-             if (IS_ERR(bh))
-                     return PTR_ERR(bh);
+             if (IS_ERR(bh)) {
+                     written = PTR_ERR(bh);
+                     goto err;
+             }
        }
        while (from + bsize <= to) {

               prev_bh = bh;

fs/affs/file.c +0 -0

@@ -790,6 +794,7 @@ done:
        if (tmp > inode->i_size)
                inode->i_size = AFFS_I(inode)->mmu_private = tmp;

+err:
       unlock_page(page);
       page_cache_release(page);

--
2.3.3