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perf lock: Fix a copy-n-paste bug

It should be lock_text_end instead of _start.

Fixes: 0d2997f750d1de39 ("perf lock: Look up callchain for the contended locks")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Waiman Long <longman@redhat.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20220721043644.153718-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

authored by

Namhyung Kim and committed by
Arnaldo Carvalho de Melo 9fe9b252 60ecf84d

+1 -1
+1 -1
tools/perf/builtin-lock.c
··· 892 892 sym = machine__find_kernel_symbol_by_name(machine, 893 893 "__lock_text_end", 894 894 &kmap); 895 - lock_text_start = kmap->unmap_ip(kmap, sym->start); 895 + lock_text_end = kmap->unmap_ip(kmap, sym->start); 896 896 } 897 897 898 898 /* failed to get kernel symbols */