Now that reserve_ds_buffers() never fails, change it to return void and remove all code dealing with the error return. Signed-off-by: Peter Zijlstra LKML-Reference: --- arch/x86/kernel/cpu/perf_event.c | 9 +++------ arch/x86/kernel/cpu/perf_event_intel_ds.c | 9 +++------ 2 files changed, 6 insertions(+), 12 deletions(-) Index: linux-2.6/arch/x86/kernel/cpu/perf_event.c =================================================================== --- linux-2.6.orig/arch/x86/kernel/cpu/perf_event.c +++ linux-2.6/arch/x86/kernel/cpu/perf_event.c @@ -382,7 +382,7 @@ static void release_pmc_hardware(void) { #endif -static int reserve_ds_buffers(void); +static void reserve_ds_buffers(void); static void release_ds_buffers(void); static void hw_perf_event_destroy(struct perf_event *event) @@ -546,11 +546,8 @@ static int __x86_pmu_event_init(struct p if (atomic_read(&active_events) == 0) { if (!reserve_pmc_hardware()) err = -EBUSY; - else { - err = reserve_ds_buffers(); - if (err) - release_pmc_hardware(); - } + else + reserve_ds_buffers(); } if (!err) atomic_inc(&active_events); Index: linux-2.6/arch/x86/kernel/cpu/perf_event_intel_ds.c =================================================================== --- linux-2.6.orig/arch/x86/kernel/cpu/perf_event_intel_ds.c +++ linux-2.6/arch/x86/kernel/cpu/perf_event_intel_ds.c @@ -191,7 +191,7 @@ static void release_ds_buffers(void) put_online_cpus(); } -static int reserve_ds_buffers(void) +static void reserve_ds_buffers(void) { int bts_err = 0, pebs_err = 0; int cpu; @@ -200,7 +200,7 @@ static int reserve_ds_buffers(void) x86_pmu.pebs_active = 0; if (!x86_pmu.bts && !x86_pmu.pebs) - return 0; + return; if (!x86_pmu.bts) bts_err = 1; @@ -251,8 +251,6 @@ static int reserve_ds_buffers(void) } put_online_cpus(); - - return 0; } /* @@ -714,9 +712,8 @@ static void intel_ds_init(void) #else /* CONFIG_CPU_SUP_INTEL */ -static int reserve_ds_buffers(void) +static void reserve_ds_buffers(void) { - return 0; } static void release_ds_buffers(void) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/