poll: Reformat ssh_poll_ctx_dopoll()

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

src/poll.c

@@ -591,7 +591,8 @@ void ssh_poll_ctx_remove(ssh_poll_ctx ctx, ssh_poll_handle p) {
  *          SSH_AGAIN   Timeout occured
  */
 
-int ssh_poll_ctx_dopoll(ssh_poll_ctx ctx, int timeout) {
+int ssh_poll_ctx_dopoll(ssh_poll_ctx ctx, int timeout)
+{
     int rc;
     int i, used;
     ssh_poll_handle p;
@@ -599,8 +600,9 @@ int ssh_poll_ctx_dopoll(ssh_poll_ctx ctx, int timeout) {
     int revents;
     struct ssh_timestamp ts;
 
-  if (!ctx->polls_used)
+    if (ctx->polls_used == 0) {
         return SSH_ERROR;
+    }
 
     ssh_timestamp_init(&ts);
     do {
@@ -608,10 +610,13 @@ int ssh_poll_ctx_dopoll(ssh_poll_ctx ctx, int timeout) {
         rc = ssh_poll(ctx->pollfds, ctx->polls_used, tm);
     } while (rc == -1 && errno == EINTR);
 
-  if(rc < 0)
+    if (rc < 0) {
         return SSH_ERROR;
-  if (rc == 0)
+    }
+    if (rc == 0) {
         return SSH_AGAIN;
+    }
+
     used = ctx->polls_used;
     for (i = 0; i < used && rc > 0; ) {
         if (!ctx->pollfds[i].revents || ctx->pollptrs[i]->lock) {