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-rw-r--r--ssl/d1_both.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ssl/d1_both.c b/ssl/d1_both.c
index 5bb0a4ff6c..ffc8ffe5d5 100644
--- a/ssl/d1_both.c
+++ b/ssl/d1_both.c
@@ -279,7 +279,7 @@ int dtls1_do_write(SSL *s, int type)
* retransmit
*/
if ( BIO_ctrl(SSL_get_wbio(s),
- BIO_CTRL_DGRAM_MTU_EXCEEDED, 0, NULL))
+ BIO_CTRL_DGRAM_MTU_EXCEEDED, 0, NULL) > 0 )
s->d1->mtu = BIO_ctrl(SSL_get_wbio(s),
BIO_CTRL_DGRAM_QUERY_MTU, 0, NULL);
else