1 files changed, 0 insertions, 141 deletions
diff --git a/core/libusbx/0002-hotplug-Remove-use-of-pthread_cancel-from-linux_udev.patch b/core/libusbx/0002-hotplug-Remove-use-of-pthread_cancel-from-linux_udev.patch
deleted file mode 100644
index 5342fbe70..000000000
--- a/core/libusbx/0002-hotplug-Remove-use-of-pthread_cancel-from-linux_udev.patch
+++ /dev/null
@@ -1,141 +0,0 @@
-From 852efb5a3e82de43cf6288e9904cb254ff636aa0 Mon Sep 17 00:00:00 2001
-From: Chris Dickens <christopher.a.dickens@gmail.com>
-Date: Sat, 20 Jul 2013 13:01:41 -0700
-Subject: [PATCH 2/2] hotplug: Remove use of pthread_cancel from linux_udev
-
-Using pthread_cancel() presents the opportunity for deadlock, so
-use a control pipe to cause the event thread to gracefully exit.
-
-Signed-off-by: Hans de Goede <hdegoede@redhat.com>
----
- libusb/os/linux_udev.c | 63 ++++++++++++++++++++++++++++++++++++++------------
- libusb/version_nano.h  |  2 +-
- 2 files changed, 49 insertions(+), 16 deletions(-)
-
-diff --git a/libusb/os/linux_udev.c b/libusb/os/linux_udev.c
-index 5a2aadf..70f632d 100644
---- a/libusb/os/linux_udev.c
-+++ b/libusb/os/linux_udev.c
-@@ -46,6 +46,7 @@
- /* udev context */
- static struct udev *udev_ctx = NULL;
- static int udev_monitor_fd = -1;
-+static int udev_control_pipe[2] = {-1, -1};
- static struct udev_monitor *udev_monitor = NULL;
- static pthread_t linux_event_thread;
- 
-@@ -95,14 +96,23 @@ int linux_udev_start_event_monitor(void)
- 		goto err_free_monitor;
- 	}
- 
-+	r = usbi_pipe(udev_control_pipe);
-+	if (r) {
-+		usbi_err(NULL, "could not create udev control pipe");
-+		goto err_free_monitor;
-+	}
-+
- 	r = pthread_create(&linux_event_thread, NULL, linux_udev_event_thread_main, NULL);
- 	if (r) {
- 		usbi_err(NULL, "creating hotplug event thread (%d)", r);
--		goto err_free_monitor;
-+		goto err_close_pipe;
- 	}
- 
- 	return LIBUSB_SUCCESS;
- 
-+err_close_pipe:
-+	close(udev_control_pipe[0]);
-+	close(udev_control_pipe[1]);
- err_free_monitor:
- 	udev_monitor_unref(udev_monitor);
- 	udev_monitor = NULL;
-@@ -115,14 +125,19 @@ err_free_ctx:
- 
- int linux_udev_stop_event_monitor(void)
- {
-+	char dummy = 1;
-+	int r;
-+
- 	assert(udev_ctx != NULL);
- 	assert(udev_monitor != NULL);
- 	assert(udev_monitor_fd != -1);
- 
--	/* Cancel the event thread. This is the only way to guarantee the
--	   thread exits since closing the monitor fd won't necessarily cause
--	   poll to return. */
--	pthread_cancel(linux_event_thread);
-+	/* Write some dummy data to the control pipe and
-+	 * wait for the thread to exit */
-+	r = usbi_write(udev_control_pipe[1], &dummy, sizeof(dummy));
-+	if (r <= 0) {
-+		usbi_warn(NULL, "udev control pipe signal failed");
-+	}
- 	pthread_join(linux_event_thread, NULL);
- 
- 	/* Release the udev monitor */
-@@ -134,27 +149,45 @@ int linux_udev_stop_event_monitor(void)
- 	udev_unref(udev_ctx);
- 	udev_ctx = NULL;
- 
-+	/* close and reset control pipe */
-+	close(udev_control_pipe[0]);
-+	close(udev_control_pipe[1]);
-+	udev_control_pipe[0] = -1;
-+	udev_control_pipe[1] = -1;
-+
- 	return LIBUSB_SUCCESS;
- }
- 
- static void *linux_udev_event_thread_main(void *arg)
- {
-+	char dummy;
-+	int r;
- 	struct udev_device* udev_dev;
--	struct pollfd fds = {.fd = udev_monitor_fd,
--			     .events = POLLIN};
-+	struct pollfd fds[] = {
-+		{.fd = udev_control_pipe[0],
-+		 .events = POLLIN},
-+		{.fd = udev_monitor_fd,
-+		 .events = POLLIN},
-+	};
- 
- 	usbi_dbg("udev event thread entering.");
- 
--	while (1 == poll(&fds, 1, -1)) {
--		if (NULL == udev_monitor || POLLIN != fds.revents) {
-+	while (poll(fds, 2, -1) >= 0) {
-+		if (fds[0].revents & POLLIN) {
-+			/* activity on control pipe, read the byte and exit */
-+			r = usbi_read(udev_control_pipe[0], &dummy, sizeof(dummy));
-+			if (r <= 0) {
-+				usbi_warn(NULL, "udev control pipe read failed");
-+			}
- 			break;
- 		}
--
--		usbi_mutex_static_lock(&linux_hotplug_lock);
--		udev_dev = udev_monitor_receive_device(udev_monitor);
--		if (udev_dev)
--			udev_hotplug_event(udev_dev);
--		usbi_mutex_static_unlock(&linux_hotplug_lock);
-+		if (fds[1].revents & POLLIN) {
-+			usbi_mutex_static_lock(&linux_hotplug_lock);
-+			udev_dev = udev_monitor_receive_device(udev_monitor);
-+			if (udev_dev)
-+				udev_hotplug_event(udev_dev);
-+			usbi_mutex_static_unlock(&linux_hotplug_lock);
-+		}
- 	}
- 
- 	usbi_dbg("udev event thread exiting");
-diff --git a/libusb/version_nano.h b/libusb/version_nano.h
-index 34e26ff..39ad7e3 100644
---- a/libusb/version_nano.h
-+++ b/libusb/version_nano.h
-@@ -1 +1 @@
--#define LIBUSB_NANO 10777
-+#define LIBUSB_NANO 10778
--- 
-1.8.3.1
-