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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 <xiexiuqi@huawei.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Hongbo Yao <yaohongbo@huawei.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Li Bin <huawei.libin@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lore.kernel.org/lkml/20200521133218.30150-4-liwei391@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -2817,7 +2817,7 @@ static char *prefix_if_not_in(const char *pre, char *str)
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return str;
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if (asprintf(&n, "%s,%s", pre, str) < 0)
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return NULL;
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n = NULL;
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free(str);
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return n;
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