Perf-Trace-Util version 0.01 ============================ This module contains utility functions for use with perf script. Core.pm and Util.pm are pure Perl modules; Core.pm contains routines that the core perf support for Perl calls on and should always be 'used', while Util.pm contains useful but optional utility functions that scripts may want to use. Context.pm contains the Perl->C interface that allows scripts to access data in the embedding perf executable; scripts wishing to do that should 'use Context.pm'. The Perl->C perf interface is completely driven by Context.xs. If you want to add new Perl functions that end up accessing C data in the perf executable, you add desciptions of the new functions here. scripting_context is a pointer to the perf data in the perf executable that you want to access - it's passed as the second parameter, $context, to all handler functions. After you do that: perl Makefile.PL # to create a Makefile for the next step make # to create Context.c edit Context.c to add const to the char* file = __FILE__ line in XS(boot_Perf__Trace__Context) to silence a warning/error. You can delete the Makefile, object files and anything else that was generated e.g. blib and shared library, etc, except for of course Context.c You should then be able to run the normal perf make as usual. INSTALLATION Building perf with perf script Perl scripting should install this module in the right place. You should make sure libperl and ExtUtils/Embed.pm are installed first e.g. apt-get install libperl-dev or yum install perl-ExtUtils-Embed. DEPENDENCIES This module requires these other modules and libraries: None COPYRIGHT AND LICENCE Copyright (C) 2009 by Tom Zanussi This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.10.0 or, at your option, any later version of Perl 5 you may have available. Alternatively, this software may be distributed under the terms of the GNU General Public License ("GPL") version 2 as published by the Free Software Foundation. f69a708203b76ba5535'>commitdiff
path: root/include/sound/hda_i915.h
diff options
context:
space:
mode:
authorJisheng Zhang <jszhang@marvell.com>2016-11-10 17:21:29 +0800
committerMark Brown <broonie@kernel.org>2016-11-11 15:38:08 +0000
commit09f2ba0b0b7c44ecea49cf69a708203b76ba5535 (patch)
tree042df33ac99f77d8b86ac427431e267c33561c35 /include/sound/hda_i915.h
parent1001354ca34179f3db924eb66672442a173147dc (diff)
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 'include/sound/hda_i915.h')