Since we cannot make sure the 'max_conn_count' will always be none zero from the users, and then if max_conn_count equals to zero, the kcalloc() will return ZERO_SIZE_PTR, which equals to ((void *)16).
So this patch fix this via doing the zero pionter check of it.
Signed-off-by: Xiubo Li Li.Xiubo@freescale.com --- drivers/gpu/drm/drm_fb_helper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 3d13ca6e2..c6680ef 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -536,7 +536,7 @@ int drm_fb_helper_init(struct drm_device *dev, sizeof(struct drm_connector *), GFP_KERNEL);
- if (!fb_helper->crtc_info[i].mode_set.connectors) + if (ZERO_OR_NULL_PTR(fb_helper->crtc_info[i].mode_set.connectors)) goto out_free; fb_helper->crtc_info[i].mode_set.num_connectors = 0; }