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Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus

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* git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus:
  Squashfs: Valid filesystems are flagged as bad by the corrupted fs patch
This commit is contained in:
Linus Torvalds 2009-03-12 16:32:36 -07:00
commit 188de5ec56
1 changed files with 4 additions and 17 deletions
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21
fs/squashfs/block.c
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@ -184,15 +184,7 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
offset = 0; offset = 0;
} }
if (msblk->stream.avail_out == 0) { if (msblk->stream.avail_out == 0 && page < pages) {
if (page == pages) {
ERROR("zlib_inflate tried to "
"decompress too much data, "
"expected %d bytes. Zlib "
"data probably corrupt\n",
srclength);
goto release_mutex;
}
msblk->stream.next_out = buffer[page++]; msblk->stream.next_out = buffer[page++];
msblk->stream.avail_out = PAGE_CACHE_SIZE; msblk->stream.avail_out = PAGE_CACHE_SIZE;
} }
@ -209,25 +201,20 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
zlib_init = 1; zlib_init = 1;
} }
zlib_err = zlib_inflate(&msblk->stream, Z_NO_FLUSH); zlib_err = zlib_inflate(&msblk->stream, Z_SYNC_FLUSH);
if (msblk->stream.avail_in == 0 && k < b) if (msblk->stream.avail_in == 0 && k < b)
put_bh(bh[k++]); put_bh(bh[k++]);
} while (zlib_err == Z_OK); } while (zlib_err == Z_OK);
if (zlib_err != Z_STREAM_END) { if (zlib_err != Z_STREAM_END) {
ERROR("zlib_inflate returned unexpected result" ERROR("zlib_inflate error, data probably corrupt\n");
" 0x%x, srclength %d, avail_in %d,"
" avail_out %d\n", zlib_err, srclength,
msblk->stream.avail_in,
msblk->stream.avail_out);
goto release_mutex; goto release_mutex;
} }
zlib_err = zlib_inflateEnd(&msblk->stream); zlib_err = zlib_inflateEnd(&msblk->stream);
if (zlib_err != Z_OK) { if (zlib_err != Z_OK) {
ERROR("zlib_inflateEnd returned unexpected result 0x%x," ERROR("zlib_inflate error, data probably corrupt\n");
" srclength %d\n", zlib_err, srclength);
goto release_mutex; goto release_mutex;
} }
length = msblk->stream.total_out; length = msblk->stream.total_out;