From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Subject: [PATCH 42/86] perf test sdt: Handle realpath() failure Date: Wed, 19 Jul 2017 11:29:06 -0300 Message-ID: <20170719142950.3747-43-acme@kernel.org> References: <20170719142950.3747-1-acme@kernel.org> Return-path: In-Reply-To: <20170719142950.3747-1-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho de Melo , Masami Hiramatsu List-Id: linux-perf-users.vger.kernel.org From: Arnaldo Carvalho de Melo It can return NULL, in which case we should bail out and remove the directory created with mkdtemp(), which is stored in the "__tempdir" variable, not in "tempdir". Cc: Masami Hiramatsu Fixes: 8e5dc848356e ("perf test: Add a test case for SDT event") Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/sdt.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/perf/tests/sdt.c b/tools/perf/tests/sdt.c index 5abe8cea54e6..d80171526f6f 100644 --- a/tools/perf/tests/sdt.c +++ b/tools/perf/tests/sdt.c @@ -83,6 +83,8 @@ int test__sdt_event(int subtests __maybe_unused) } /* Note that buildid_dir must be an absolute path */ tempdir = realpath(__tempdir, NULL); + if (tempdir == NULL) + goto error_rmdir; /* At first, scan itself */ set_buildid_dir(tempdir); @@ -100,7 +102,7 @@ int test__sdt_event(int subtests __maybe_unused) error_rmdir: /* Cleanup temporary buildid dir */ - rm_rf(tempdir); + rm_rf(__tempdir); error: free(tempdir); free(myself); -- 2.9.4