tools lib bpf: Check return value of strdup when reading map names

Commit 561bbccac72d08babafaa33fd7fa9100ec4c9fb6 ("tools lib bpf:
Extract and collect map names from BPF object file") forgets checking
return value of strdup(). This patch fixes it. It also checks names
pointer before strcmp() for safety.

Signed-off-by: Wang Nan <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Zefan Li <[email protected]>
Cc: [email protected]
Fixes: 561bbccac72d ("tools lib bpf: Extract and collect map names from BPF object file")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

0 files changed, 0 insertions, 0 deletions