lzo: Update dst_len 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/lzo/lzo1x_decompress.c b/lib/lzo/lzo1x_decompress.c
index 35f3793..ebdf10b 100644
--- a/lib/lzo/lzo1x_decompress.c
+++ b/lib/lzo/lzo1x_decompress.c
@@ -102,8 +102,10 @@
tmp = dlen;
r = lzo1x_decompress_safe((u8 *) src, slen, dst, &tmp);
- if (r != LZO_E_OK)
+ if (r != LZO_E_OK) {
+ *dst_len = dst - start;
return r;
+ }
if (dlen != tmp)
return LZO_E_ERROR;