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From:   gushengxian <gushengxian507419@gmail.com>
To:     will@kernel.org, mathieu.poirier@linaro.org, leo.yan@linaro.org,
        peterz@infradead.org, mingo@redhat.com, acme@kernel.org,
        mark.rutland@arm.com, alexander.shishkin@linux.intel.com,
        jolsa@redhat.com, namhyung@kernel.org,
        linux-arm-kernel@lists.infradead.org
Cc:     linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
        gushengxian <gushengxian@yulong.com>
Subject: [PATCH] perf: tests: fix some mmemory leak issues
Date:   Thu,  1 Jul 2021 21:09:55 -0700
Message-Id: <20210702040955.631618-1-gushengxian507419@gmail.com>
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From: gushengxian <gushengxian@yulong.com>

Some memory leak issues should be fixed by free().
Reported by cppcheck.

Signed-off-by: gushengxian <gushengxian@yulong.com>
---
 tools/perf/arch/arm/tests/dwarf-unwind.c     | 1 +
 tools/perf/arch/arm64/tests/dwarf-unwind.c   | 1 +
 tools/perf/arch/powerpc/tests/dwarf-unwind.c | 1 +
 tools/perf/arch/x86/tests/dwarf-unwind.c     | 1 +
 4 files changed, 4 insertions(+)

diff --git a/tools/perf/arch/arm/tests/dwarf-unwind.c b/tools/perf/arch/arm/tests/dwarf-unwind.c
index ccfa87055c4a..f2541d1dbb02 100644
--- a/tools/perf/arch/arm/tests/dwarf-unwind.c
+++ b/tools/perf/arch/arm/tests/dwarf-unwind.c
@@ -39,6 +39,7 @@ static int sample_ustack(struct perf_sample *sample,
 	memcpy(buf, (void *) sp, stack_size);
 	stack->data = (char *) buf;
 	stack->size = stack_size;
+	free(buf);
 	return 0;
 }
 
diff --git a/tools/perf/arch/arm64/tests/dwarf-unwind.c b/tools/perf/arch/arm64/tests/dwarf-unwind.c
index 46147a483049..ecd25c77a71f 100644
--- a/tools/perf/arch/arm64/tests/dwarf-unwind.c
+++ b/tools/perf/arch/arm64/tests/dwarf-unwind.c
@@ -39,6 +39,7 @@ static int sample_ustack(struct perf_sample *sample,
 	memcpy(buf, (void *) sp, stack_size);
 	stack->data = (char *) buf;
 	stack->size = stack_size;
+	free(buf);
 	return 0;
 }
 
diff --git a/tools/perf/arch/powerpc/tests/dwarf-unwind.c b/tools/perf/arch/powerpc/tests/dwarf-unwind.c
index 8efd9ed9e9db..e57a8ca52ce7 100644
--- a/tools/perf/arch/powerpc/tests/dwarf-unwind.c
+++ b/tools/perf/arch/powerpc/tests/dwarf-unwind.c
@@ -40,6 +40,7 @@ static int sample_ustack(struct perf_sample *sample,
 	memcpy(buf, (void *) sp, stack_size);
 	stack->data = (char *) buf;
 	stack->size = stack_size;
+	free(buf);
 	return 0;
 }
 
diff --git a/tools/perf/arch/x86/tests/dwarf-unwind.c b/tools/perf/arch/x86/tests/dwarf-unwind.c
index 478078fb0f22..da90b33a1e28 100644
--- a/tools/perf/arch/x86/tests/dwarf-unwind.c
+++ b/tools/perf/arch/x86/tests/dwarf-unwind.c
@@ -47,6 +47,7 @@ static int sample_ustack(struct perf_sample *sample,
 #endif
 	stack->data = (char *) buf;
 	stack->size = stack_size;
+	free(buf);
 	return 0;
 }
 
-- 
2.25.1