diff options
| author | Richard Purdie <rpurdie@rpsys.net> | 2007-05-06 14:51:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-07 12:13:04 -0700 |
| commit | f0ac675806441d17303707856f4d23bd27092014 (patch) | |
| tree | 558cabe05bbff24241d54ef92619259d10b01dd9 /lib/zlib_inflate/inflate.c | |
| parent | c24228daa1e489721812815838220de607260df9 (diff) | |
| download | lwn-f0ac675806441d17303707856f4d23bd27092014.tar.gz lwn-f0ac675806441d17303707856f4d23bd27092014.zip | |
Fix ppp_deflate issues with recent zlib_inflate changes
The last zlib_inflate update broke certain corner cases for ppp_deflate
decompression handling. This patch fixes some logic to make things work
properly again. Users other than ppp_deflate (the only Z_PACKET_FLUSH
user) should be unaffected.
Fixes bug 8405 (confirmed by Stefan)
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Cc: Stefan Wenk <stefan.wenk@gmx.at>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/zlib_inflate/inflate.c')
| -rw-r--r-- | lib/zlib_inflate/inflate.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/zlib_inflate/inflate.c b/lib/zlib_inflate/inflate.c index fceb97c3aff7..7e1e3114a73e 100644 --- a/lib/zlib_inflate/inflate.c +++ b/lib/zlib_inflate/inflate.c @@ -743,12 +743,14 @@ int zlib_inflate(z_streamp strm, int flush) strm->data_type = state->bits + (state->last ? 64 : 0) + (state->mode == TYPE ? 128 : 0); - if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK) - ret = Z_BUF_ERROR; if (flush == Z_PACKET_FLUSH && ret == Z_OK && - (strm->avail_out != 0 || strm->avail_in == 0)) + strm->avail_out != 0 && strm->avail_in == 0) return zlib_inflateSyncPacket(strm); + + if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK) + ret = Z_BUF_ERROR; + return ret; } |