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| author | Ingo Molnar <mingo@elte.hu> | 2009-09-03 18:22:45 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-09-03 18:22:45 +0400 |
| commit | 6f4596d9312ba5fbf5f3231ef484823c4e684d2e (patch) | |
| tree | 877465917e5d8afc46f4cc0907c2befd1dd104cc /tools | |
| parent | 00fc97863c21c41e257a941e83410c56341e2a5d (diff) | |
| download | linux-6f4596d9312ba5fbf5f3231ef484823c4e684d2e.tar.xz | |
perf trace: Fix read_string()
We did not account for the enclosing \0. Depending on what malloc()
gave us this resulted in corrupted version string printouts.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/trace-event-read.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c index b12e4903739a..a1217a10632f 100644 --- a/tools/perf/util/trace-event-read.c +++ b/tools/perf/util/trace-event-read.c @@ -113,8 +113,11 @@ static char *read_string(void) } } + /* trailing \0: */ + i++; + /* move the file descriptor to the end of the string */ - r = lseek(input_fd, -(r - (i+1)), SEEK_CUR); + r = lseek(input_fd, -(r - i), SEEK_CUR); if (r < 0) die("lseek"); |