perf/x86/intel/pt: Drop pointless NULL assignment.

Only a few lines below this removed line is this:

  attrs = kzalloc(size, GFP_KERNEL);

and since there is no code path where this could be avoided, the
NULL assignment is a pointless relic of history and can be removed.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200408235216.108980-1-paul.gortmaker@windriver.com

diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c
index 1db7a51..e94af4a 100644 (file)
--- a/arch/x86/events/intel/pt.c
+++ b/arch/x86/events/intel/pt.c
@@ -226,8 +226,6 @@ static int __init pt_pmu_hw_init(void)
                        pt_pmu.vmx = true;
        }
 
-       attrs = NULL;
-
        for (i = 0; i < PT_CPUID_LEAVES; i++) {
                cpuid_count(20, i,
                            &pt_pmu.caps[CPUID_EAX + i*PT_CPUID_REGS_NUM],