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Re: [Qemu-devel] [PATCH v2 1/3] tests/migration: mem leak fix
From: |
Alex Bennée |
Subject: |
Re: [Qemu-devel] [PATCH v2 1/3] tests/migration: mem leak fix |
Date: |
Wed, 11 Sep 2019 09:21:33 +0100 |
User-agent: |
mu4e 1.3.4; emacs 27.0.50 |
Mao Zhongyi <address@hidden> writes:
> ‘data’ has the possibility of memory leaks, so use the
> glic macros g_autofree recommended by CODING_STYLE.rst
nit: glib
> to automatically release the memory that returned from
> g_malloc().
>
> Cc: address@hidden
> Cc: address@hidden
> Cc: address@hidden
> Cc: address@hidden
>
> Signed-off-by: Mao Zhongyi <address@hidden>
Reviewed-by: Alex Bennée <address@hidden>
> ---
> 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);
> }
--
Alex Bennée