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authorArnaldo Carvalho de Melo <acme@redhat.com>2011-02-22 06:56:18 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-02-22 07:02:07 -0300
commit8635bf6ea3402154eec64763e6ed14972013c1c1 (patch)
treec4be2ace553029aa4139068c689ba47e8c86b8b0
parente603dc15072c7fec0ae263597e6dabc3bb4c5c5b (diff)
perf probe: Remove redundant checks
While fixing an error propagating problem in f809b25 I added two redundant checks. I did that because I didn't expect the checks to be on the while and for loop condition expression, where they are tested before we run the loop, where the 'ret' variable is set. So remove it from there and leave it just after it is actually set, eliminating unneded tests. Reported-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/util/probe-event.c2
-rw-r--r--tools/perf/util/probe-finder.c5
2 files changed, 3 insertions, 4 deletions
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 369ddc64bbb6..5ddee66020a7 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -1832,7 +1832,7 @@ int add_perf_probe_events(struct perf_probe_event *pevs, int npevs,
}
/* Loop 2: add all events */
- for (i = 0; i < npevs && ret >= 0; i++) {
+ for (i = 0; i < npevs; i++) {
ret = __add_probe_trace_events(pkgs[i].pev, pkgs[i].tevs,
pkgs[i].ntevs, force_add);
if (ret < 0)
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index eecbdca5c0d5..17f9c4a66ddd 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -1462,8 +1462,7 @@ static int find_probes(int fd, struct probe_finder *pf)
off = 0;
line_list__init(&pf->lcache);
/* Loop on CUs (Compilation Unit) */
- while (!dwarf_nextcu(dbg, off, &noff, &cuhl, NULL, NULL, NULL) &&
- ret >= 0) {
+ while (!dwarf_nextcu(dbg, off, &noff, &cuhl, NULL, NULL, NULL)) {
/* Get the DIE(Debugging Information Entry) of this CU */
diep = dwarf_offdie(dbg, off + cuhl, &pf->cu_die);
if (!diep)
@@ -1484,7 +1483,7 @@ static int find_probes(int fd, struct probe_finder *pf)
pf->lno = pp->line;
ret = find_probe_point_by_line(pf);
}
- if (ret != DWARF_CB_OK)
+ if (ret < 0)
break;
}
off = noff;