perf/x86/intel/pt: Fix a refactoring bug
authorAlexander Shishkin <alexander.shishkin@linux.intel.com>
Thu, 4 Jun 2015 13:31:47 +0000 (16:31 +0300)
committerIngo Molnar <mingo@kernel.org>
Thu, 4 Jun 2015 14:07:51 +0000 (16:07 +0200)
Commit 066450be41 ("perf/x86/intel/pt: Clean up the control flow
in pt_pmu_hw_init()") changed attribute initialization so that
only the first attribute gets initialized using
sysfs_attr_init(), which upsets lockdep.

This patch fixes the glitch so that all allocated attributes are
properly initialized thus fixing the lockdep warning reported by
Tvrtko and Imre.

Reported-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reported-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/kernel/cpu/perf_event_intel_pt.c

index 5b804f96ad66c5639c4fc62a4cb9fdaa2f00a744..123ff1bb2f60363c9dc267329fb199dedecfde63 100644 (file)
@@ -151,7 +151,7 @@ static int __init pt_pmu_hw_init(void)
 
                de_attr->attr.attr.name = pt_caps[i].name;
 
-               sysfs_attr_init(&de_attrs->attr.attr);
+               sysfs_attr_init(&de_attr->attr.attr);
 
                de_attr->attr.attr.mode         = S_IRUGO;
                de_attr->attr.show              = pt_cap_show;