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perf test sdt: Handle realpath() failure

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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 <mhiramat@kernel.org>
Fixes: 8e5dc84835 ("perf test: Add a test case for SDT event")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2017-07-01 11:21:59 -03:00
parent 4b4cd50319
commit 8526bafc14
1 changed files with 3 additions and 1 deletions
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4
tools/perf/tests/sdt.c
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@ -83,6 +83,8 @@ int test__sdt_event(int subtests __maybe_unused)
} }
/* Note that buildid_dir must be an absolute path */ /* Note that buildid_dir must be an absolute path */
tempdir = realpath(__tempdir, NULL); tempdir = realpath(__tempdir, NULL);
if (tempdir == NULL)
goto error_rmdir;
/* At first, scan itself */ /* At first, scan itself */
set_buildid_dir(tempdir); set_buildid_dir(tempdir);
@ -100,7 +102,7 @@ int test__sdt_event(int subtests __maybe_unused)
error_rmdir: error_rmdir:
/* Cleanup temporary buildid dir */ /* Cleanup temporary buildid dir */
rm_rf(tempdir); rm_rf(__tempdir);
error: error:
free(tempdir); free(tempdir);
free(myself); free(myself);