#include <stdio.h>
#include <pthread.h>

pthread_mutex_t a = PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_t b = PTHREAD_MUTEX_INITIALIZER;
pthread_barrier_t bar;

void *ba_lock(void *arg)
{
	int ret, i;

	pthread_mutex_lock(&b);

	if (pthread_barrier_wait(&bar) == PTHREAD_BARRIER_SERIAL_THREAD)
		pthread_barrier_destroy(&bar);

	pthread_mutex_lock(&a);

	pthread_mutex_unlock(&a);
	pthread_mutex_unlock(&b);
}

int main(void)
{
	pthread_t t;

	pthread_barrier_init(&bar, NULL, 2);

	if (pthread_create(&t, NULL, ba_lock, NULL)) {
		fprintf(stderr, "pthread_create() failed\n");
		return 1;
	}
	pthread_mutex_lock(&a);

	if (pthread_barrier_wait(&bar) == PTHREAD_BARRIER_SERIAL_THREAD)
		pthread_barrier_destroy(&bar);

	pthread_mutex_lock(&b);

	pthread_mutex_unlock(&b);
	pthread_mutex_unlock(&a);

	pthread_join(t, NULL);

	return 0;
}
/cgit.cgi/linux/net-next.git/'>net-next.git</a></td><td class='form'><form method='get'>
<input type='hidden' name='id' value='c1b0789271b13dd7561f78370122c3183cd74ab0'/><select name='h' onchange='this.form.submit();'>
<option value='emaclite-cleanup'>emaclite-cleanup</option>
<option value='master' selected='selected'>master</option>
<option value='nds-private-remove'>nds-private-remove</option>
<option value='packet-loop-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?id=c1b0789271b13dd7561f78370122c3183cd74ab0'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/storage/uas.c'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/storage/uas.c?id=c1b0789271b13dd7561f78370122c3183cd74ab0'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/storage/uas.c?id=c1b0789271b13dd7561f78370122c3183cd74ab0'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/storage/uas.c?id=c1b0789271b13dd7561f78370122c3183cd74ab0'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/drivers/usb/storage/uas.c'>
<input type='hidden' name='id' value='c1b0789271b13dd7561f78370122c3183cd74ab0'/><select name='qt'>
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</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=c1b0789271b13dd7561f78370122c3183cd74ab0'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=c1b0789271b13dd7561f78370122c3183cd74ab0'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?id=c1b0789271b13dd7561f78370122c3183cd74ab0'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/storage?id=c1b0789271b13dd7561f78370122c3183cd74ab0'>storage</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/storage/uas.c?id=c1b0789271b13dd7561f78370122c3183cd74ab0'>uas.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='c1b0789271b13dd7561f78370122c3183cd74ab0'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2016-12-12 12:17:19 +0000</td></tr>
<tr><th>committer</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2016-12-12 12:17:19 +0000</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/storage/uas.c?id=c1b0789271b13dd7561f78370122c3183cd74ab0'>c1b0789271b13dd7561f78370122c3183cd74ab0</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/storage/uas.c?id=c1b0789271b13dd7561f78370122c3183cd74ab0'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=c1b0789271b13dd7561f78370122c3183cd74ab0'>f4eda3db7bd1b059de81cd4bec7fbb871661dbe2</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/storage/uas.c?id=c1b0789271b13dd7561f78370122c3183cd74ab0'>drivers/usb/storage/uas.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/storage/uas.c?id=69973b830859bc6529a7a0468ba0d80ee5117826'>69973b830859bc6529a7a0468ba0d80ee5117826</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/storage/uas.c?id=c1b0789271b13dd7561f78370122c3183cd74ab0&amp;id2=69973b830859bc6529a7a0468ba0d80ee5117826'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/storage/uas.c?id=618c808968852609d2d9f0e5cfc351a4807ef8d0'>618c808968852609d2d9f0e5cfc351a4807ef8d0</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/storage/uas.c?id=c1b0789271b13dd7561f78370122c3183cd74ab0&amp;id2=618c808968852609d2d9f0e5cfc351a4807ef8d0'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge remote-tracking branch 'regulator/fix/axp20x' into regulator-linus</div><div class='commit-msg'></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=c1b0789271b13dd7561f78370122c3183cd74ab0'>Diffstat</a> (limited to 'drivers/usb/storage/uas.c')</div><table summary='diffstat' class='diffstat'>