The advantage of kcalloc is, that will prevent integer overflows which could result from the multiplication of number of elements and size and it is also a bit nicer to read. The semantic patch that makes this change is available in https://lkml.org/lkml/2011/11/25/107 Signed-off-by: Thomas Meyer <thomas@xxxxxxxx> --- diff -u -p a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c --- a/drivers/gpu/drm/i915/intel_bios.c 2011-11-13 11:07:23.820113543 +0100 +++ b/drivers/gpu/drm/i915/intel_bios.c 2011-11-28 19:49:51.443206904 +0100 @@ -572,7 +572,7 @@ parse_device_mapping(struct drm_i915_pri DRM_DEBUG_KMS("no child dev is parsed from VBT\n"); return; } - dev_priv->child_dev = kzalloc(sizeof(*p_child) * count, GFP_KERNEL); + dev_priv->child_dev = kcalloc(count, sizeof(*p_child), GFP_KERNEL); if (!dev_priv->child_dev) { DRM_DEBUG_KMS("No memory space for child device\n"); return; _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
