[Qemu-devel] [PATCH v2 1/3] tests/migration: mem leak fix

[Mao Zhongyi <maozhongyi@cmss.chinamobile.com>]

‘data’ has the possibility of memory leaks， so use the
glic macros g_autofree recommended by CODING_STYLE.rst
to automatically release the memory that returned from
g_malloc().

Cc: armbru@redhat.com
Cc: laurent@vivier.eu
Cc: tony.nguyen@bt.com
Cc: alex.bennee@linaro.org

Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
---
 tests/migration/stress.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/tests/migration/stress.c b/tests/migration/stress.c
index d9aa4afe92..6cbb2d49d3 100644
--- a/tests/migration/stress.c
+++ b/tests/migration/stress.c
@@ -170,10 +170,10 @@ static unsigned long long now(void)
 static int stressone(unsigned long long ramsizeMB)
 {
     size_t pagesPerMB = 1024 * 1024 / PAGE_SIZE;
-    char *ram = malloc(ramsizeMB * 1024 * 1024);
+    g_autofree char *ram = malloc(ramsizeMB * 1024 * 1024);
     char *ramptr;
     size_t i, j, k;
-    char *data = malloc(PAGE_SIZE);
+    g_autofree char *data = malloc(PAGE_SIZE);
     char *dataptr;
     size_t nMB = 0;
     unsigned long long before, after;
@@ -186,7 +186,6 @@ static int stressone(unsigned long long ramsizeMB)
     if (!data) {
         fprintf(stderr, "%s (%d): ERROR: cannot allocate %d bytes of RAM: %s\n",
                 argv0, gettid(), PAGE_SIZE, strerror(errno));
-        free(ram);
         return -1;
     }
 
@@ -198,8 +197,6 @@ static int stressone(unsigned long long ramsizeMB)
     memset(ram, 0xfe, ramsizeMB * 1024 * 1024);
 
     if (random_bytes(data, PAGE_SIZE) < 0) {
-        free(ram);
-        free(data);
         return -1;
     }
 
@@ -227,9 +224,6 @@ static int stressone(unsigned long long ramsizeMB)
             }
         }
     }
-
-    free(data);
-    free(ram);
 }
 
 
-- 
2.17.1