Re: [PATCH-for-5.2? 1/2] tests/qtest: variable defined by g_autofree need to be initialized

[Philippe Mathieu-Daudé]

On 11/18/20 12:56 PM, Chen Qun wrote:
> According to the glib function requirements, we need initialise
>  the variable. Otherwise there will be compilation warnings:
> 
> glib-autocleanups.h:28:3: warning: ‘full_name’ may be
> used uninitialized in this function [-Wmaybe-uninitialized]
>    28 |   g_free (*pp);
>       |   ^~~~~~~~~~~~
> 
> Reported-by: Euler Robot <euler.robot@huawei.com>
> Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
> ---
>  tests/qtest/npcm7xx_timer-test.c | 8 +++-----
>  1 file changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/tests/qtest/npcm7xx_timer-test.c 
> b/tests/qtest/npcm7xx_timer-test.c
> index f08b0cd62a..83774a5b90 100644
> --- a/tests/qtest/npcm7xx_timer-test.c
> +++ b/tests/qtest/npcm7xx_timer-test.c
> @@ -512,11 +512,9 @@ static void test_disable_on_expiration(gconstpointer 
> test_data)
>   */
>  static void tim_add_test(const char *name, const TestData *td, GTestDataFunc 
> fn)
>  {

Or:

> -    g_autofree char *full_name;
  +    g_autofree char *full_name = NULL;

> -
> -    full_name = g_strdup_printf("npcm7xx_timer/tim[%d]/timer[%d]/%s",
> -                                tim_index(td->tim), timer_index(td->timer),
> -                                name);
> +    g_autofree char *full_name = g_strdup_printf(
> +        "npcm7xx_timer/tim[%d]/timer[%d]/%s", tim_index(td->tim),
> +        timer_index(td->timer), name);
>      qtest_add_data_func(full_name, td, fn);
>  }
>  
>