linux-kernel - [PATCH] scsi: fix lockdep warning

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Message-ID: <4BA47692.7040401@kernel.org>
Date:	Sat, 20 Mar 2010 00:17:38 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	Greg KH <gregkh@...e.de>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux-Scsi <linux-scsi@...r.kernel.org>
Subject: [PATCH] scsi: fix lockdep warning


with qlogic and emulex card etc.

Signed-off-by: Yinghai Lu <yinghai@...nel.org>

---
 drivers/base/attribute_container.c |    1 +
 drivers/scsi/lpfc/lpfc_attr.c      |    3 +++
 drivers/scsi/scsi_sysfs.c          |   15 ++++++++++++---
 3 files changed, 16 insertions(+), 3 deletions(-)

Index: linux-2.6/drivers/scsi/lpfc/lpfc_attr.c
===================================================================
--- linux-2.6.orig/drivers/scsi/lpfc/lpfc_attr.c
+++ linux-2.6/drivers/scsi/lpfc/lpfc_attr.c
@@ -3780,6 +3780,7 @@ lpfc_alloc_sysfs_attr(struct lpfc_vport
 	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 	int error;
 
+	sysfs_bin_attr_init(&sysfs_drvr_stat_data_attr);
 	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
 				      &sysfs_drvr_stat_data_attr);
 
@@ -3787,11 +3788,13 @@ lpfc_alloc_sysfs_attr(struct lpfc_vport
 	if (error || vport->port_type == LPFC_NPIV_PORT)
 		goto out;
 
+	sysfs_bin_attr_init(&sysfs_ctlreg_attr);
 	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
 				      &sysfs_ctlreg_attr);
 	if (error)
 		goto out_remove_stat_attr;
 
+	sysfs_bin_attr_init(&sysfs_mbox_attr);
 	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
 				      &sysfs_mbox_attr);
 	if (error)
Index: linux-2.6/drivers/scsi/scsi_sysfs.c
===================================================================
--- linux-2.6.orig/drivers/scsi/scsi_sysfs.c
+++ linux-2.6/drivers/scsi/scsi_sysfs.c
@@ -907,20 +907,27 @@ int scsi_sysfs_add_sdev(struct scsi_devi
 
 	/* create queue files, which may be writable, depending on the host */
 	if (sdev->host->hostt->change_queue_depth) {
+		sysfs_bin_attr_init(&sdev_attr_queue_depth_rw);
 		error = device_create_file(&sdev->sdev_gendev,
 					   &sdev_attr_queue_depth_rw);
+		sysfs_bin_attr_init(&sdev_attr_queue_ramp_up_period);
 		error = device_create_file(&sdev->sdev_gendev,
 					   &sdev_attr_queue_ramp_up_period);
 	}
-	else
+	else {
+		sysfs_bin_attr_init(&dev_attr_queue_depth);
 		error = device_create_file(&sdev->sdev_gendev, &dev_attr_queue_depth);
+	}
 	if (error)
 		return error;
 
-	if (sdev->host->hostt->change_queue_type)
+	if (sdev->host->hostt->change_queue_type)  {
+		sysfs_bin_attr_init(&sdev_attr_queue_type_rw);
 		error = device_create_file(&sdev->sdev_gendev, &sdev_attr_queue_type_rw);
-	else
+	} else {
+		sysfs_bin_attr_init(&dev_attr_queue_type);
 		error = device_create_file(&sdev->sdev_gendev, &dev_attr_queue_type);
+	}
 	if (error)
 		return error;
 
@@ -935,6 +942,7 @@ int scsi_sysfs_add_sdev(struct scsi_devi
 	/* add additional host specific attributes */
 	if (sdev->host->hostt->sdev_attrs) {
 		for (i = 0; sdev->host->hostt->sdev_attrs[i]; i++) {
+			sysfs_bin_attr_init(sdev->host->hostt->sdev_attrs[i]);
 			error = device_create_file(&sdev->sdev_gendev,
 					sdev->host->hostt->sdev_attrs[i]);
 			if (error)
@@ -1060,6 +1068,7 @@ int scsi_sysfs_add_host(struct Scsi_Host
 	/* add host specific attributes */
 	if (shost->hostt->shost_attrs) {
 		for (i = 0; shost->hostt->shost_attrs[i]; i++) {
+			sysfs_bin_attr_init(shost->hostt->shost_attrs[i]);
 			error = device_create_file(&shost->shost_dev,
 					shost->hostt->shost_attrs[i]);
 			if (error)
Index: linux-2.6/drivers/base/attribute_container.c
===================================================================
--- linux-2.6.orig/drivers/base/attribute_container.c
+++ linux-2.6/drivers/base/attribute_container.c
@@ -328,6 +328,7 @@ attribute_container_add_attrs(struct dev
 		return sysfs_create_group(&classdev->kobj, cont->grp);
 
 	for (i = 0; attrs[i]; i++) {
+		sysfs_bin_attr_init(attrs[i]);
 		error = device_create_file(classdev, attrs[i]);
 		if (error)
 			return error;
--
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