Properly handle cases where a stream can't be written to. (issue #9757 reported by junky)

git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.4@67924 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 2 insertions, 0 deletions

diff --git a/main/file.c b/main/file.c
index 91c863b6f..e86a8d497 100644
--- a/main/file.c
+++ b/main/file.c
@@ -956,6 +956,8 @@ struct ast_filestream *ast_writefile(const char *filename, const char *type, con
 				}
 				if (fs)
 					ast_free(fs);
+				fs = NULL;
+				continue;
 			}
 			fs->trans = NULL;
 			fs->fmt = f;