perf tools: Fix resource leak of closedir() on the error paths

Both build_mem_topology() and rm_rf_depth_pat() have resource leaks of
closedir() on the error paths.

Fix this by calling closedir() before function returns.

Fixes: e2091cedd51b ("perf tools: Add MEM_TOPOLOGY feature to perf data file")
Fixes: cdb6b0235f17 ("perf tools: Add pattern name checking to rm_rf")
Signed-off-by: Yunfeng Ye <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Starovoitov <[email protected]>
Cc: Alexey Budankov <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Daniel Borkmann <[email protected]>
Cc: Feilong Lin <[email protected]>
Cc: Hu Shiyuan <[email protected]>
Cc: Igor Lubashev <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Martin KaFai Lau <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Yonghong Song <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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