Commit 36feb996 authored Mar 11, 2020 by Linus Torvalds

linux-trace

Pull ftrace fix from Steven Rostedt:
 "Have ftrace lookup_rec() return a consistent record otherwise it can
  break live patching"

* tag 'trace-v5.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ftrace: Return the first found result in lookup_rec()

parents c7f26a0c d9815bff

kernel/trace/ftrace.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1547,6 +1547,8 @@ static struct dyn_ftrace *lookup_rec(unsigned long start, unsigned long end)
		rec = bsearch(&key, pg->records, pg->index,
		sizeof(struct dyn_ftrace),
		ftrace_cmp_recs);
		if (rec)
		break;
		}
		return rec;
		}

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