struct amdgpu_dm_connector *connector = file_inode(f)->i_private;
if (size < sizeof(connector->debugfs_dpcd_address))
- return 0;
+ return -EINVAL;
r = copy_from_user(&connector->debugfs_dpcd_address,
buf, sizeof(connector->debugfs_dpcd_address));
struct amdgpu_dm_connector *connector = file_inode(f)->i_private;
if (size < sizeof(connector->debugfs_dpcd_size))
- return 0;
+ return -EINVAL;
r = copy_from_user(&connector->debugfs_dpcd_size,
buf, sizeof(connector->debugfs_dpcd_size));
struct dc_link *link = connector->dc_link;
uint32_t write_size = connector->debugfs_dpcd_size;
- if (size < write_size)
- return 0;
+ if (!write_size || size < write_size)
+ return -EINVAL;
data = kzalloc(write_size, GFP_KERNEL);
if (!data)
struct dc_link *link = connector->dc_link;
uint32_t read_size = connector->debugfs_dpcd_size;
- if (size < read_size)
+ if (!read_size || size < read_size)
return 0;
data = kzalloc(read_size, GFP_KERNEL);