Am 05.02.22 um 18:38 schrieb Christophe JAILLET:

kmalloc_array()/kcalloc() should be used to avoid potential overflow when a multiplication is needed to compute the size of the requested memory.

So turn a kzalloc()+explicit size computation into an equivalent kcalloc().

Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr

Reviewed-by: Christian König christian.koenig@amd.com

---

drivers/gpu/drm/radeon/radeon_atombios.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 28c4413f4dc8..7b9cc7a9f42f 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -897,13 +897,13 @@ bool radeon_get_atom_connector_info_from_supported_devices_table(struct union atom_supported_devices *supported_devices; int i, j, max_device; struct bios_connector *bios_connectors;

• size_t bc_size = sizeof(*bios_connectors) * ATOM_MAX_SUPPORTED_DEVICE; struct radeon_router router;

  router.ddc_valid = false; router.cd_valid = false;

• bios_connectors = kzalloc(bc_size, GFP_KERNEL);

• bios_connectors = kcalloc(ATOM_MAX_SUPPORTED_DEVICE,

• 		  sizeof(*bios_connectors), GFP_KERNEL);
  

  if (!bios_connectors) return false;