[PATCH] x86/intel/quark: fix ptr_ret.cocci warnings

[kbuild test robot <fengguang.wu@intel.com>]

arch/x86/platform/intel-quark/imr.c:280:1-3: WARNING: PTR_ERR_OR_ZERO can be used


 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

CC: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
---

 imr.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/arch/x86/platform/intel-quark/imr.c
+++ b/arch/x86/platform/intel-quark/imr.c
@@ -277,10 +277,7 @@ static int imr_debugfs_register(struct i
 {
 	idev->file = debugfs_create_file("imr_state", S_IFREG | S_IRUGO, NULL,
 					 idev, &imr_state_ops);
-	if (IS_ERR(idev->file))
-		return PTR_ERR(idev->file);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(idev->file);
 }
 
 /**