bzlib: Update destLen even on error
This allows the caller to easily detect how much of the destination buffer
has been used.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/lib/bzip2/bzlib.c b/lib/bzip2/bzlib.c
index 5844e18..9262e40 100644
--- a/lib/bzip2/bzlib.c
+++ b/lib/bzip2/bzlib.c
@@ -1350,11 +1350,11 @@
strm.avail_out = *destLen;
ret = BZ2_bzDecompress ( &strm );
+ *destLen -= strm.avail_out;
if (ret == BZ_OK) goto output_overflow_or_eof;
if (ret != BZ_STREAM_END) goto errhandler;
/* normal termination */
- *destLen -= strm.avail_out;
BZ2_bzDecompressEnd ( &strm );
return BZ_OK;