[glib-networking] openssl: clear error before propagating

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 2d186906b6b96b0026e7b33b1f6acbb64f01b8d3
Author: Ole André Vadla Ravnås <oleavr gmail com>
Date:   Wed May 26 13:09:59 2021 +0200

    openssl: clear error before propagating
    
    We're telling OpenSSL to retry, storing the error, and obviously once it
    retries we might fail and try to store the error again.

 tls/openssl/gtlsbio.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/tls/openssl/gtlsbio.c b/tls/openssl/gtlsbio.c
index b138432..ad1efb5 100644
--- a/tls/openssl/gtlsbio.c
+++ b/tls/openssl/gtlsbio.c
@@ -176,6 +176,7 @@ gtls_bio_write (BIO        *bio,
       if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK))
         BIO_set_retry_write (bio);
 
+      g_clear_error (gbio->write_error);
       g_propagate_error (gbio->write_error, error);
     }
 
@@ -218,6 +219,7 @@ gtls_bio_read (BIO  *bio,
       if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK))
         BIO_set_retry_read (bio);
 
+      g_clear_error (gbio->read_error);
       g_propagate_error (gbio->read_error, error);
     }