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9b6a3f3633
The current probe() function calls a pair of cpuhp_xxx API functions to setup CPU hotplug handling. The hotplug lock is held for the duration of the two calls and other CPU related code using cpus_read_lock() / cpus_read_unlock() calls. The problem is that on error states, goto: statements bypass the cpus_read_unlock() call. This code has increased in complexity as the driver has developed. This patch introduces a pair of helper functions etm4_pm_setup_cpuslocked() and etm4_pm_clear() which correct the issues above and group the PM code a little better. The two functions etm4_cpu_pm_register() and etm4_cpu_pm_unregister() are dropped as these call cpu_pm_register_notifier() / ..unregister_notifier() dependent on CONFIG_CPU_PM - but this define is used to nop these functions out in the pm headers - so the wrapper functions are superfluous. Fixes: |
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| .. | ||
| coresight-catu.c | ||
| coresight-catu.h | ||
| coresight-cpu-debug.c | ||
| coresight-cti-platform.c | ||
| coresight-cti-sysfs.c | ||
| coresight-cti.c | ||
| coresight-cti.h | ||
| coresight-etb10.c | ||
| coresight-etm-cp14.c | ||
| coresight-etm-perf.c | ||
| coresight-etm-perf.h | ||
| coresight-etm.h | ||
| coresight-etm3x-sysfs.c | ||
| coresight-etm3x.c | ||
| coresight-etm4x-sysfs.c | ||
| coresight-etm4x.c | ||
| coresight-etm4x.h | ||
| coresight-funnel.c | ||
| coresight-platform.c | ||
| coresight-priv.h | ||
| coresight-replicator.c | ||
| coresight-stm.c | ||
| coresight-sysfs.c | ||
| coresight-tmc-etf.c | ||
| coresight-tmc-etr.c | ||
| coresight-tmc.c | ||
| coresight-tmc.h | ||
| coresight-tpiu.c | ||
| coresight.c | ||
| Kconfig | ||
| Makefile | ||