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windows: fix possible crash

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Checking for (!wsi) does not make sense, if wsi is
dereferenced in the line above.
This commit is contained in:
Frank May 2018-08-19 06:43:14 +08:00 • committed by Andy Green
parent fab4bff4f6
commit e17820cf67
1 changed files with 2 additions and 2 deletions
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4
lib/plat/windows/windows-service.c
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@ -82,9 +82,9 @@ _lws_plat_service_tsi(struct lws_context *context, int timeout_ms, int tsi)
continue;
wsi = wsi_from_fd(context, pfd->fd);
if (wsi->listener)
if (!wsi || wsi->listener)
continue;
if (!wsi || wsi->sock_send_blocking)
if (wsi->sock_send_blocking)
continue;
pfd->revents = LWS_POLLOUT;
n = lws_service_fd(context, pfd);