Commit-ID: 2caa48a24061b1f8e8dab43ea3292a608a15e3c9
Gitweb: http://git.kernel.org/tip/2caa48a24061b1f8e8dab43ea3292a608a15e3c9
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Thu, 24 Jan 2013 22:34:33 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 25 Jan 2013 12:49:29 -0300
perf header: Stop using die() calls when processing tracing data
The callers of this function (perf_event__process_tracing_data) already
handles a negative value return as error, so just use pr_err() to log
the problem and return -1 instead of panic'ing.
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-eeeljnecpi0zi5s7ux1mzdv9@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/header.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index fccd69d..e17a8fe 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2921,16 +2921,22 @@ int perf_event__process_tracing_data(union perf_event *event,
session->repipe);
padding = PERF_ALIGN(size_read, sizeof(u64)) - size_read;
- if (readn(session->fd, buf, padding) < 0)
- die("reading input file");
+ if (readn(session->fd, buf, padding) < 0) {
+ pr_err("%s: reading input file", __func__);
+ return -1;
+ }
if (session->repipe) {
int retw = write(STDOUT_FILENO, buf, padding);
- if (retw <= 0 || retw != padding)
- die("repiping tracing data padding");
+ if (retw <= 0 || retw != padding) {
+ pr_err("%s: repiping tracing data padding", __func__);
+ return -1;
+ }
}
- if (size_read + padding != size)
- die("tracing data size mismatch");
+ if (size_read + padding != size) {
+ pr_err("%s: tracing data size mismatch", __func__);
+ return -1;
+ }
perf_evlist__prepare_tracepoint_events(session->evlist,
session->pevent);
--
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