Hi YueHaibing,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20181126]

url:    https://github.com/0day-ci/linux/commits/YueHaibing/platform-x86-intel-ips-fix-passing-zero-to-PTR_ERR-warning/20181126-213205
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

>> drivers/platform/x86/intel_ips.c:1315:17: error: Expected ; at end of statement
>> drivers/platform/x86/intel_ips.c:1315:17: error: got return

vim +1315 drivers/platform/x86/intel_ips.c

aa7ffc01 Jesse Barnes 2010-05-14  1307  
aa7ffc01 Jesse Barnes 2010-05-14  1308  static void ips_debugfs_init(struct ips_driver *ips)
aa7ffc01 Jesse Barnes 2010-05-14  1309  {
aa7ffc01 Jesse Barnes 2010-05-14  1310  	int i;
aa7ffc01 Jesse Barnes 2010-05-14  1311  
aa7ffc01 Jesse Barnes 2010-05-14  1312  	ips->debug_root = debugfs_create_dir("ips", NULL);
aa7ffc01 Jesse Barnes 2010-05-14  1313  	if (!ips->debug_root) {
895c026e YueHaibing   2018-11-26  1314  		dev_err(ips->dev, "failed to create debugfs entries\n")
aa7ffc01 Jesse Barnes 2010-05-14 @1315  		return;
aa7ffc01 Jesse Barnes 2010-05-14  1316  	}
aa7ffc01 Jesse Barnes 2010-05-14  1317  
aa7ffc01 Jesse Barnes 2010-05-14  1318  	for (i = 0; i < ARRAY_SIZE(ips_debug_files); i++) {
aa7ffc01 Jesse Barnes 2010-05-14  1319  		struct dentry *ent;
aa7ffc01 Jesse Barnes 2010-05-14  1320  		struct ips_debugfs_node *node = &ips_debug_files[i];
aa7ffc01 Jesse Barnes 2010-05-14  1321  
aa7ffc01 Jesse Barnes 2010-05-14  1322  		node->ips = ips;
aa7ffc01 Jesse Barnes 2010-05-14  1323  		ent = debugfs_create_file(node->name, S_IFREG | S_IRUGO,
aa7ffc01 Jesse Barnes 2010-05-14  1324  					  ips->debug_root, node,
aa7ffc01 Jesse Barnes 2010-05-14  1325  					  &ips_debugfs_ops);
aa7ffc01 Jesse Barnes 2010-05-14  1326  		if (!ent) {
895c026e YueHaibing   2018-11-26  1327  			dev_err(ips->dev, "failed to create debug file\n");
aa7ffc01 Jesse Barnes 2010-05-14  1328  			goto err_cleanup;
aa7ffc01 Jesse Barnes 2010-05-14  1329  		}
aa7ffc01 Jesse Barnes 2010-05-14  1330  	}
aa7ffc01 Jesse Barnes 2010-05-14  1331  
aa7ffc01 Jesse Barnes 2010-05-14  1332  	return;
aa7ffc01 Jesse Barnes 2010-05-14  1333  
aa7ffc01 Jesse Barnes 2010-05-14  1334  err_cleanup:
aa7ffc01 Jesse Barnes 2010-05-14  1335  	ips_debugfs_cleanup(ips);
aa7ffc01 Jesse Barnes 2010-05-14  1336  	return;
aa7ffc01 Jesse Barnes 2010-05-14  1337  }
aa7ffc01 Jesse Barnes 2010-05-14  1338  #endif /* CONFIG_DEBUG_FS */
aa7ffc01 Jesse Barnes 2010-05-14  1339  

:::::: The code at line 1315 was first introduced by commit
:::::: aa7ffc01d254c91a36bf854d57a14049c6134c72 x86 platform driver: intelligent power sharing driver

:::::: TO: Jesse Barnes <jbarnes@virtuousgeek.org>
:::::: CC: Matthew Garrett <mjg@redhat.com>

---
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