#!/bin/sh # description: event trigger - test stacktrace-trigger do_reset() { reset_trigger echo > set_event clear_trace } fail() { #msg do_reset echo $1 exit $FAIL } if [ ! -f set_event -o ! -d events/sched ]; then echo "event tracing is not supported" exit_unsupported fi if [ ! -f events/sched/sched_process_fork/trigger ]; then echo "event trigger is not supported" exit_unsupported fi reset_tracer do_reset FEATURE=`grep stacktrace events/sched/sched_process_fork/trigger` if [ -z "$FEATURE" ]; then echo "stacktrace trigger is not supported" exit_unsupported fi echo "Test stacktrace tigger" echo 0 > trace echo 0 > options/stacktrace echo 'stacktrace' > events/sched/sched_process_fork/trigger ( echo "forked") grep "" trace > /dev/null || \ fail "stacktrace trigger on sched_process_fork did not work" reset_trigger echo "Test stacktrace semantic errors" ! echo "stacktrace:foo" > events/sched/sched_process_fork/trigger echo "stacktrace" > events/sched/sched_process_fork/trigger ! echo "stacktrace" > events/sched/sched_process_fork/trigger do_reset exit 0 r net-next plumbingsTobias Klauser
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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 /tools/perf/arch/arm/util/dwarf-regs.c
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 'tools/perf/arch/arm/util/dwarf-regs.c')