#include "util.h"
#include "../debug.h"
/*
* Default error logging functions
*/
static int perf_stdio__error(const char *format, va_list args)
{
fprintf(stderr, "Error:\n");
vfprintf(stderr, format, args);
return 0;
}
static int perf_stdio__warning(const char *format, va_list args)
{
fprintf(stderr, "Warning:\n");
vfprintf(stderr, format, args);
return 0;
}
static struct perf_error_ops default_eops =
{
.error = perf_stdio__error,
.warning = perf_stdio__warning,
};
static struct perf_error_ops *perf_eops = &default_eops;
int ui__error(const char *format, ...)
{
int ret;
va_list args;
va_start(args, format);
ret = perf_eops->error(format, args);
va_end(args);
return ret;
}
int ui__warning(const char *format, ...)
{
int ret;
va_list args;
va_start(args, format);
ret = perf_eops->warning(format, args);
va_end(args);
return ret;
}
/**
* perf_error__register - Register error logging functions
* @eops: The pointer to error logging function struct
*
* Register UI-specific error logging functions. Before calling this,
* other logging functions should be unregistered, if any.
*/
int perf_error__register(struct perf_error_ops *eops)
{
if (perf_eops != &default_eops)
return -1;
perf_eops = eops;
return 0;
}
/**
* perf_error__unregister - Unregister error logging functions
* @eops: The pointer to error logging function struct
*
* Unregister already registered error logging functions.
*/
int perf_error__unregister(struct perf_error_ops *eops)
{
if (perf_eops != eops)
return -1;
perf_eops = &default_eops;
return 0;
}
x/net-next.git/?h=nds-private-remove'>summaryrefslogtreecommitdiff
drm: Don't race connector registration
I was under the misconception that the sysfs dev stuff can be fully
set up, and then registered all in one step with device_add. That's
true for properties and property groups, but not for parents and child
devices. Those must be fully registered before you can register a
child.
Add a bit of tracking to make sure that asynchronous mst connector
hotplugging gets this right. For consistency we rely upon the implicit
barriers of the connector->mutex, which is taken anyway, to ensure
that at least either the connector or device registration call will
work out.
Mildly tested since I can't reliably reproduce this on my mst box
here.
Reported-by: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1484237756-2720-1-git-send-email-daniel.vetter@ffwll.ch