[PATCH i-g-t v2 4/4] lib: fix calloc calls with inverted arguments

Kamil Konieczny kamil.konieczny at linux.intel.com
Wed Apr 10 15:17:41 UTC 2024


Hi Mauro,
On 2024-04-10 at 16:42:38 +0200, Mauro Carvalho Chehab wrote:
> From: Mauro Carvalho Chehab <mchehab at kernel.org>
> 
> The new gcc version 14 now complains when calloc is called
> with inverted arguments. use the script from:
> a0ee73a8f359 ("benchmarks: fix calloc calls with inverted arguments")
> 
> To fix it.

Same note goes here, with or without it:

Reviewed-by: Kamil Konieczny <kamil.konieczny at linux.intel.com>

> 
> Signed-off-by: Mauro Carvalho Chehab <mchehab at kernel.org>
> ---
>  lib/igt_chamelium.c | 4 ++--
>  lib/igt_kms.c       | 6 +++---
>  2 files changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/lib/igt_chamelium.c b/lib/igt_chamelium.c
> index 881e1892cf87..016d5356630c 100644
> --- a/lib/igt_chamelium.c
> +++ b/lib/igt_chamelium.c
> @@ -153,7 +153,7 @@ struct chamelium_port **chamelium_get_ports(struct chamelium *chamelium,
>  {
>  	int i;
>  	struct chamelium_port **ret =
> -		calloc(sizeof(void*), chamelium->port_count);
> +		calloc(chamelium->port_count, sizeof(void*));
>  
>  	*count = chamelium->port_count;
>  	for (i = 0; i < chamelium->port_count; i++)
> @@ -1516,7 +1516,7 @@ igt_crc_t *chamelium_read_captured_crcs(struct chamelium *chamelium,
>  	res = chamelium_rpc(chamelium, NULL, "GetCapturedChecksums", "(in)", 0);
>  
>  	*frame_count = xmlrpc_array_size(&chamelium->env, res);
> -	ret = calloc(sizeof(igt_crc_t), *frame_count);
> +	ret = calloc(*frame_count, sizeof(igt_crc_t));
>  
>  	for (i = 0; i < *frame_count; i++) {
>  		xmlrpc_array_read_item(&chamelium->env, res, i, &elem);
> diff --git a/lib/igt_kms.c b/lib/igt_kms.c
> index 2a518eb8d936..60339565a192 100644
> --- a/lib/igt_kms.c
> +++ b/lib/igt_kms.c
> @@ -2778,7 +2778,7 @@ void igt_display_require(igt_display_t *display, int drm_fd)
>  		     resources->count_crtcs, IGT_MAX_PIPES);
>  
>  	display->n_pipes = IGT_MAX_PIPES;
> -	display->pipes = calloc(sizeof(igt_pipe_t), display->n_pipes);
> +	display->pipes = calloc(display->n_pipes, sizeof(igt_pipe_t));
>  	igt_assert_f(display->pipes, "Failed to allocate memory for %d pipes\n", display->n_pipes);
>  
>  	for (i = 0; i < resources->count_crtcs; i++) {
> @@ -2806,7 +2806,7 @@ void igt_display_require(igt_display_t *display, int drm_fd)
>  	igt_assert(plane_resources);
>  
>  	display->n_planes = plane_resources->count_planes;
> -	display->planes = calloc(sizeof(igt_plane_t), display->n_planes);
> +	display->planes = calloc(display->n_planes, sizeof(igt_plane_t));
>  	igt_assert_f(display->planes, "Failed to allocate memory for %d planes\n", display->n_planes);
>  
>  	for (i = 0; i < plane_resources->count_planes; ++i) {
> @@ -2855,7 +2855,7 @@ void igt_display_require(igt_display_t *display, int drm_fd)
>  		}
>  
>  		igt_assert_lt(0, n_planes);
> -		pipe->planes = calloc(sizeof(igt_plane_t), n_planes);
> +		pipe->planes = calloc(n_planes, sizeof(igt_plane_t));
>  		igt_assert_f(pipe->planes, "Failed to allocate memory for %d planes\n", n_planes);
>  		last_plane = n_planes - 1;
>  
> -- 
> 2.44.0
> 


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