poll: fix leak in ssh_poll_ctx_free

Fix a memory leak in 'ssh_poll_ctx_free': issue 'ssh_poll_free'
to remove the poll handle from its context and free it.

BUG: https://red.libssh.org/issues/128

Reviewed-by: Andreas Schneider <asn@cryptomilk.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/src/poll.c b/src/poll.c
index bde0198d..8e21e0d5 100644
--- a/src/poll.c
+++ b/src/poll.c
@@ -450,7 +450,11 @@ void ssh_poll_ctx_free(ssh_poll_ctx ctx) {
   if (ctx->polls_allocated > 0) {
     while (ctx->polls_used > 0){
       ssh_poll_handle p = ctx->pollptrs[0];
-      ssh_poll_ctx_remove(ctx, p);
+      /*
+       * The free function calls ssh_poll_ctx_remove() and decrements
+       * ctx->polls_used
+       */
+      ssh_poll_free(p);
     }
 
     SAFE_FREE(ctx->pollptrs);