diff options
Diffstat (limited to 'extra/libxt/Revert_treat_unexpected_returned_events_from_poll_as_errors.diff')
| -rw-r--r-- | extra/libxt/Revert_treat_unexpected_returned_events_from_poll_as_errors.diff | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/extra/libxt/Revert_treat_unexpected_returned_events_from_poll_as_errors.diff b/extra/libxt/Revert_treat_unexpected_returned_events_from_poll_as_errors.diff new file mode 100644 index 000000000..b3f708292 --- /dev/null +++ b/extra/libxt/Revert_treat_unexpected_returned_events_from_poll_as_errors.diff @@ -0,0 +1,40 @@ +From 70bb9e28d37fff4ead4d0a2c672af77059765fa4 Mon Sep 17 00:00:00 2001 +From: Jeremy Huddleston <jeremyhu@apple.com> +Date: Wed, 04 Jan 2012 18:33:29 +0000 +Subject: Treat unexpected returned events from poll as errors + +Inspired by libxcb's f0565e8f06aadf760a9065a97b8cf5ab9cbd18de + +Resolves https://bugs.freedesktop.org/show_bug.cgi?id=20048 + +Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com> +--- +diff --git a/src/NextEvent.c b/src/NextEvent.c +index b1f7bc7..c8c9dd5 100644 +--- a/src/NextEvent.c ++++ b/src/NextEvent.c +@@ -356,7 +356,21 @@ static int IoWait ( + return Select (wf->nfds, &wf->rmask, &wf->wmask, &wf->emask, + wt->wait_time_ptr); + #else +- return poll (wf->fdlist, wf->fdlistlen, wt->poll_wait); ++ int ret = poll (wf->fdlist, wf->fdlistlen, wt->poll_wait); ++ /* If poll() returns an event we didn't expect, such as POLLNVAL, treat ++ * it as if it failed. */ ++ if(ret >= 0) { ++ nfds_t i; ++ for (i=0; i < wf->fdlistlen; i++) { ++ struct pollfd *fd = &wf->fdlist[i]; ++ if (fd->revents & ~fd->events) { ++ ret = -1; ++ errno = EIO; ++ break; ++ } ++ } ++ } ++ return ret; + #endif + } + +-- +cgit v0.9.0.2-2-gbebe |