/*
* intel-bts.h: Intel Processor Trace support
* Copyright (c) 2013-2014, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
*/
#ifndef INCLUDE__PERF_INTEL_BTS_H__
#define INCLUDE__PERF_INTEL_BTS_H__
#define INTEL_BTS_PMU_NAME "intel_bts"
enum {
INTEL_BTS_PMU_TYPE,
INTEL_BTS_TIME_SHIFT,
INTEL_BTS_TIME_MULT,
INTEL_BTS_TIME_ZERO,
INTEL_BTS_CAP_USER_TIME_ZERO,
INTEL_BTS_SNAPSHOT_MODE,
INTEL_BTS_AUXTRACE_PRIV_MAX,
};
#define INTEL_BTS_AUXTRACE_PRIV_SIZE (INTEL_BTS_AUXTRACE_PRIV_MAX * sizeof(u64))
struct auxtrace_record;
struct perf_tool;
union perf_event;
struct perf_session;
struct auxtrace_record *intel_bts_recording_init(int *err);
int intel_bts_process_auxtrace_info(union perf_event *event,
struct perf_session *session);
#endif
ion value='nds-private-remove' selected='selected'>nds-private-remove
regulator: gpio: properly check return value of of_get_named_gpio
The function of_get_named_gpio() could return -ENOENT, -EPROBE_DEFER
-EINVAL and so on. Currently, for the optional property "enable-gpio",
we only check -EPROBE_DEFER, this is not enough since there may be
misconfigured "enable-gpio" in the DTB, of_get_named_gpio() will return
-EINVAL in this case, we should return immediately here. And for the
optional property "gpios", we didn't check the return value, the driver
will continue to the point where gpio_request_array() is called, it
doesn't make sense to continue if we got -EPROBE_DEFER or -EINVAL here.
This patch tries to address these two issues by properly checking the
return value of of_get_named_gpio.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'tools/lib/traceevent/kbuffer.h')