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selftests/bpf: Fix memory leak in test_ima 

The allocated ring buffer is never freed, do so in the cleanup path.

Fixes: f446b570ac ("bpf/selftests: Update the IMA test to use BPF ring buffer")
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20211028063501.2239335-9-memxor@gmail.com
This commit is contained in:
Kumar Kartikeya Dwivedi 2021-10-28 12:05:01 +05:30 committed by Alexei Starovoitov
parent c3fc706e94
commit efadf2ad17
1 changed files with 2 additions and 1 deletions
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3
tools/testing/selftests/bpf/prog_tests/test_ima.c
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@ -43,7 +43,7 @@ static int process_sample(void *ctx, void *data, size_t len)
void test_test_ima(void) void test_test_ima(void)
{ {
char measured_dir_template[] = "/tmp/ima_measuredXXXXXX"; char measured_dir_template[] = "/tmp/ima_measuredXXXXXX";
struct ring_buffer *ringbuf; struct ring_buffer *ringbuf = NULL;
const char *measured_dir; const char *measured_dir;
char cmd[256]; char cmd[256];
@ -85,5 +85,6 @@ close_clean:
err = system(cmd); err = system(cmd);
CHECK(err, "failed to run command", "%s, errno = %d\n", cmd, errno); CHECK(err, "failed to run command", "%s, errno = %d\n", cmd, errno);
close_prog: close_prog:
ring_buffer__free(ringbuf);
ima__destroy(skel); ima__destroy(skel);
} }