[PATCH GnuPG 7/7] g10: fix uninit use

* g10/decrypt-data.c (aead_underflow): Initialize 'err'
  to 0.

--

Just initialize to 0 and then there's no risk of using an uninit var
if we (somehow) fall through to the end label.

Found by GCC's -fanalyzer.

Signed-off-by: Sam James <[email protected]>
---
 g10/decrypt-data.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/g10/decrypt-data.c b/g10/decrypt-data.c
index 0f1551144..8b1469257 100644
--- a/g10/decrypt-data.c
+++ b/g10/decrypt-data.c
@@ -638,7 +638,7 @@ static gpg_error_t
 aead_underflow (decode_filter_ctx_t dfx, iobuf_t a, byte *buf, size_t *ret_len)
 {
   const size_t size = *ret_len; /* The allocated size of BUF.  */
-  gpg_error_t err;
+  gpg_error_t err = 0;
   size_t totallen = 0; /* The number of bytes to return on success or EOF.  */
   size_t off = 0;      /* The offset into the buffer.  */
   size_t len;          /* The current number of bytes in BUF+OFF.  */
-- 
2.52.0