Squashfs: fix failure to unlock pages on decompress error

[linux-drm-fsl-dcu.git] / fs / squashfs / file_direct.c

diff --git a/fs/squashfs/file_direct.c b/fs/squashfs/file_direct.c
index 2943b2bfae482ac83d352f317af4c074ce6597ae..62a0de6632e1aa3c8de599e19db3f8d7e2a383e2 100644 (file)
--- a/fs/squashfs/file_direct.c
+++ b/fs/squashfs/file_direct.c
@@ -84,6 +84,9 @@ int squashfs_readpage_block(struct page *target_page, u64 block, int bsize)
                 */
                res = squashfs_read_cache(target_page, block, bsize, pages,
                                                                page);
+               if (res < 0)
+                       goto mark_errored;
+
                goto out;
        }
 
@@ -119,7 +122,7 @@ mark_errored:
         * dealt with by the caller
         */
        for (i = 0; i < pages; i++) {
-               if (page[i] == target_page)
+               if (page[i] == NULL || page[i] == target_page)
                        continue;
                flush_dcache_page(page[i]);
                SetPageError(page[i]);