Messages in this thread Patch in this message | | | Date | Fri, 08 May 2020 13:05:15 -0000 | From | "tip-bot2 for Tommi Rantala" <> | Subject | [tip: perf/core] perf cgroup: Avoid needless closing of unopened fd |
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The following commit has been merged into the perf/core branch of tip:
Commit-ID: d2e7d8636fb7d3e30aa8f894003f9e293ea62eea Gitweb: https://git.kernel.org/tip/d2e7d8636fb7d3e30aa8f894003f9e293ea62eea Author: Tommi Rantala <tommi.t.rantala@nokia.com> AuthorDate: Fri, 17 Apr 2020 16:23:26 +03:00 Committer: Arnaldo Carvalho de Melo <acme@redhat.com> CommitterDate: Wed, 22 Apr 2020 10:01:33 -03:00
perf cgroup: Avoid needless closing of unopened fd
Do not bother with close() if fd is not valid, just to silence valgrind:
$ valgrind ./perf script ==59169== Memcheck, a memory error detector ==59169== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==59169== Using Valgrind-3.14.0 and LibVEX; rerun with -h for copyright info ==59169== Command: ./perf script ==59169== ==59169== Warning: invalid file descriptor -1 in syscall close() ==59169== Warning: invalid file descriptor -1 in syscall close() ==59169== Warning: invalid file descriptor -1 in syscall close() ==59169== Warning: invalid file descriptor -1 in syscall close() ==59169== Warning: invalid file descriptor -1 in syscall close() ==59169== Warning: invalid file descriptor -1 in syscall close() ==59169== Warning: invalid file descriptor -1 in syscall close() ==59169== Warning: invalid file descriptor -1 in syscall close()
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20200417132330.119407-1-tommi.t.rantala@nokia.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/cgroup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/cgroup.c b/tools/perf/util/cgroup.c index b73fb78..050dea9 100644 --- a/tools/perf/util/cgroup.c +++ b/tools/perf/util/cgroup.c @@ -107,7 +107,8 @@ found: static void cgroup__delete(struct cgroup *cgroup) { - close(cgroup->fd); + if (cgroup->fd >= 0) + close(cgroup->fd); zfree(&cgroup->name); free(cgroup); }
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