scsi: qedf: no need to check return value of debugfs_create functions

When calling debugfs functions, there is no need to ever check the return
value.  The function can work or not, but the code logic should never do
something different based on this.

Cc: QLogic-Storage-Upstream@cavium.com
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qedf/qedf_debugfs.c

@@ -27,30 +27,19 @@ qedf_dbg_host_init(struct qedf_dbg_ctx *qedf,
 		    const struct file_operations *fops)
 {
 	char host_dirname[32];
-	struct dentry *file_dentry = NULL;
 
 	QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "Creating debugfs host node\n");
 	/* create pf dir */
 	sprintf(host_dirname, "host%u", qedf->host_no);
 	qedf->bdf_dentry = debugfs_create_dir(host_dirname, qedf_dbg_root);
-	if (!qedf->bdf_dentry)
-		return;
 
 	/* create debugfs files */
 	while (dops) {
 		if (!(dops->name))
 			break;
 
-		file_dentry = debugfs_create_file(dops->name, 0600,
-						  qedf->bdf_dentry, qedf,
-						  fops);
-		if (!file_dentry) {
-			QEDF_INFO(qedf, QEDF_LOG_DEBUGFS,
-				   "Debugfs entry %s creation failed\n",
-				   dops->name);
-			debugfs_remove_recursive(qedf->bdf_dentry);
-			return;
-		}
+		debugfs_create_file(dops->name, 0600, qedf->bdf_dentry, qedf,
+				    fops);
 		dops++;
 		fops++;
 	}
@@ -80,9 +69,6 @@ qedf_dbg_init(char *drv_name)
 
 	/* create qed dir in root of debugfs. NULL means debugfs root */
 	qedf_dbg_root = debugfs_create_dir(drv_name, NULL);
-	if (!qedf_dbg_root)
-		QEDF_INFO(NULL, QEDF_LOG_DEBUGFS, "Init of debugfs "
-			   "failed\n");
 }
 
 /**

drivers/scsi/qedi/qedi_debugfs.c

@@ -23,27 +23,16 @@ qedi_dbg_host_init(struct qedi_dbg_ctx *qedi,
 		   const struct file_operations *fops)
 {
 	char host_dirname[32];
-	struct dentry *file_dentry = NULL;
 
 	sprintf(host_dirname, "host%u", qedi->host_no);
 	qedi->bdf_dentry = debugfs_create_dir(host_dirname, qedi_dbg_root);
-	if (!qedi->bdf_dentry)
-		return;
 
 	while (dops) {
 		if (!(dops->name))
 			break;
 
-		file_dentry = debugfs_create_file(dops->name, 0600,
-						  qedi->bdf_dentry, qedi,
-						  fops);
-		if (!file_dentry) {
-			QEDI_INFO(qedi, QEDI_LOG_DEBUGFS,
-				  "Debugfs entry %s creation failed\n",
-				  dops->name);
-			debugfs_remove_recursive(qedi->bdf_dentry);
-			return;
-		}
+		debugfs_create_file(dops->name, 0600, qedi->bdf_dentry, qedi,
+				    fops);
 		dops++;
 		fops++;
 	}
@@ -60,8 +49,6 @@ void
 qedi_dbg_init(char *drv_name)
 {
 	qedi_dbg_root = debugfs_create_dir(drv_name, NULL);
-	if (!qedi_dbg_root)
-		QEDI_INFO(NULL, QEDI_LOG_DEBUGFS, "Init of debugfs failed\n");
 }
 
 void