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perf test: Add free() calls for scandir() returned dirent entries

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ASan reported a memory leak for items of the entlist returned from scandir().

In fact, scandir() returns a malloc'd array of malloc'd dirents.

This patch adds the missing (z)frees.

Fixes: da963834fe ("perf test: Iterate over shell tests in alphabetical order")
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Fabian Hemmer <copy@copy.sh>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Remi Bernon <rbernon@codeweavers.com>
Link: http://lore.kernel.org/lkml/20210709163454.672082-1-rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Riccardo Mancini 2021-07-09 18:34:53 +02:00 • committed by Arnaldo Carvalho de Melo
parent afd4ad01ff
commit eb7261f14e
1 changed files with 11 additions and 4 deletions
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15
tools/perf/tests/builtin-test.c
View file

@ -26,6 +26,7 @@
#include <linux/kernel.h>
#include <linux/string.h>
#include <subcmd/exec-cmd.h>
#include <linux/zalloc.h>
static bool dont_fork;
@ -540,7 +541,7 @@ static int shell_tests__max_desc_width(void)
{
struct dirent **entlist;
struct dirent *ent;
int n_dirs;
int n_dirs, e;
char path_dir[PATH_MAX];
const char *path = shell_tests__dir(path_dir, sizeof(path_dir));
int width = 0;
@ -564,8 +565,9 @@ static int shell_tests__max_desc_width(void)
}
}
for (e = 0; e < n_dirs; e++)
zfree(&entlist[e]);
free(entlist);
return width;
}
@ -596,7 +598,7 @@ static int run_shell_tests(int argc, const char *argv[], int i, int width)
{
struct dirent **entlist;
struct dirent *ent;
int n_dirs;
int n_dirs, e;
char path_dir[PATH_MAX];
struct shell_test st = {
.dir = shell_tests__dir(path_dir, sizeof(path_dir)),
@ -629,6 +631,8 @@ static int run_shell_tests(int argc, const char *argv[], int i, int width)
test_and_print(&test, false, -1);
}
for (e = 0; e < n_dirs; e++)
zfree(&entlist[e]);
free(entlist);
return 0;
}
@ -730,7 +734,7 @@ static int perf_test__list_shell(int argc, const char **argv, int i)
{
struct dirent **entlist;
struct dirent *ent;
int n_dirs;
int n_dirs, e;
char path_dir[PATH_MAX];
const char *path = shell_tests__dir(path_dir, sizeof(path_dir));
@ -752,8 +756,11 @@ static int perf_test__list_shell(int argc, const char **argv, int i)
continue;
pr_info("%2d: %s\n", i, t.desc);
}
for (e = 0; e < n_dirs; e++)
zfree(&entlist[e]);
free(entlist);
return 0;
}