perf probe: Fix bugs in line range finder

Fix find_line_range_by_line() to init line_list and remove
misconseptional found marking which should be done when
real lines are found (if there is no lines probe-able,
find_line_range() should return 0).

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
LKML-Reference: <20100225133527.6725.52418.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 2 deletions

diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 1b2124d12f68..3e10dbe22ab8 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -788,6 +788,7 @@ static void find_line_range_by_line(struct line_finder *lf)
         Dwarf_Addr addr;
         int ret;
 
+        INIT_LIST_HEAD(&lf->lr->line_list);
         ret = dwarf_srclines(lf->cu_die, &lines, &cnt, &__dw_error);
         DIE_IF(ret != DW_DLV_OK);
 
@@ -848,8 +849,6 @@ static int linefunc_callback(struct die_link *dlink, void *data)
                 lr->start = lf->lno_s;
                 lr->end = lf->lno_e;
                 find_line_range_by_line(lf);
-                /* If we find a target function, this should be end. */
-                lf->found = 1;
                 return 1;
         }
         return 0;