[PATCH] selftests/riscv: ptrace: Fix memory leak of regset_data in vector tests

[Wang Yan]

The regset_data buffer allocated with calloc() in the parent process
of several vector ptrace tests is never freed before returning,
causing memory leaks in:

- ptrace_v_not_enabled
- ptrace_v_early_debug
- ptrace_v_syscall_clobbering
- v_csr_invalid/ptrace_v_invalid_values
- v_csr_valid/ptrace_v_valid_values

Add free(regset_data) before kill(pid, SIGKILL) to release the
allocated buffer.

Signed-off-by: Wang Yan <wangyan01 at kylinos.cn>
---
 .../testing/selftests/riscv/vector/validate_v_ptrace.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/riscv/vector/validate_v_ptrace.c b/tools/testing/selftests/riscv/vector/validate_v_ptrace.c
index b038e2175c80..a388b7963d47 100644
--- a/tools/testing/selftests/riscv/vector/validate_v_ptrace.c
+++ b/tools/testing/selftests/riscv/vector/validate_v_ptrace.c
@@ -75,7 +75,7 @@ TEST(ptrace_v_not_enabled)
 		ASSERT_EQ(-1, ret);
 
 		/* cleanup */
-
+		free(regset_data);
 		ASSERT_EQ(0, kill(pid, SIGKILL));
 	}
 }
@@ -207,7 +207,7 @@ TEST(ptrace_v_early_debug)
 		EXPECT_EQ(vl_csr, regset_data->vl);
 
 		/* cleanup */
-
+		free(regset_data);
 		ASSERT_EQ(0, kill(pid, SIGKILL));
 	}
 }
@@ -331,7 +331,7 @@ TEST(ptrace_v_syscall_clobbering)
 		EXPECT_EQ(0UL, regset_data->vl);
 
 		/* cleanup */
-
+		free(regset_data);
 		ASSERT_EQ(0, kill(pid, SIGKILL));
 	}
 }
@@ -649,7 +649,7 @@ TEST_F(v_csr_invalid, ptrace_v_invalid_values)
 		ASSERT_EQ(ret, -1);
 
 		/* cleanup */
-
+		free(regset_data);
 		ASSERT_EQ(0, kill(pid, SIGKILL));
 	}
 }
@@ -911,7 +911,7 @@ TEST_F(v_csr_valid, ptrace_v_valid_values)
 		EXPECT_EQ(regset_data->vlenb, vlenb);
 
 		/* cleanup */
-
+		free(regset_data);
 		ASSERT_EQ(0, kill(pid, SIGKILL));
 	}
 }
-- 
2.25.1