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    Subject[PATCH 5.13 151/156] perf test bpf: Free obj_buf
    Date
    From: Riccardo Mancini <rickyman7@gmail.com>

    commit 937654ce497fb6e977a8c52baee5f7d9616302d9 upstream.

    ASan reports some memory leaks when running:

    # perf test "42: BPF filter"

    The first of these leaks is caused by obj_buf never being deallocated in
    __test__bpf.

    This patch adds the missing free.

    Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
    Fixes: ba1fae431e74bb42 ("perf test: Add 'perf test BPF'")
    Cc: Ian Rogers <irogers@google.com>
    Cc: Jiri Olsa <jolsa@redhat.com>
    Cc: Mark Rutland <mark.rutland@arm.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Wang Nan <wangnan0@huawei.com>
    Link: http://lore.kernel.org/lkml/60f3ca935fe6672e7e866276ce6264c9e26e4c87.1626343282.git.rickyman7@gmail.com
    [ Added missing stdlib.h include ]
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    tools/perf/tests/bpf.c | 2 ++
    1 file changed, 2 insertions(+)

    --- a/tools/perf/tests/bpf.c
    +++ b/tools/perf/tests/bpf.c
    @@ -1,6 +1,7 @@
    // SPDX-License-Identifier: GPL-2.0
    #include <errno.h>
    #include <stdio.h>
    +#include <stdlib.h>
    #include <sys/epoll.h>
    #include <sys/types.h>
    #include <sys/stat.h>
    @@ -276,6 +277,7 @@ static int __test__bpf(int idx)
    }

    out:
    + free(obj_buf);
    bpf__clear();
    return ret;
    }

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