perf util: Fix memory leak of prefix_if_not_in

Need to free "str" before return when asprintf() failed to avoid memory
leak.

Signed-off-by: Xie XiuQi <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Hongbo Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Li Bin <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

0 files changed, 0 insertions, 0 deletions