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Commit 7c46c20a authored by Yinghai Lu's avatar Yinghai Lu Committed by James Bottomley
Browse files

[SCSI] ses: fix memory leaks 



fix leaking with scomp leaking when failing. Also free page10 on
driver removal and remove one extra space.

Signed-off-by: default avatarYinghai Lu <yinghai.lu@sun.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent 95f6fb57

drivers/scsi/ses.c

+14 −9
Original line number Diff line number Diff line
@@ -416,7 +416,7 @@ static int ses_intf_add(struct class_device *cdev, 
	int i, j, types, len, components = 0;

	int err = -ENOMEM;

	struct enclosure_device *edev;

	struct ses_component *scomp;

	struct ses_component *scomp = NULL;



	if (!scsi_device_enclosure(sdev)) {

		/* not an enclosure, but might be in one */
@@ -456,9 +456,6 @@ static int ses_intf_add(struct class_device *cdev, 
	if (!buf)

		goto err_free;



	ses_dev->page1 = buf;

	ses_dev->page1_len = len;



	result = ses_recv_diag(sdev, 1, buf, len);

	if (result)

		goto recv_failed;
@@ -473,6 +470,9 @@ static int ses_intf_add(struct class_device *cdev, 
		    type_ptr[0] == ENCLOSURE_COMPONENT_ARRAY_DEVICE)

			components += type_ptr[1];

	}

	ses_dev->page1 = buf;

	ses_dev->page1_len = len;

	buf = NULL;



	result = ses_recv_diag(sdev, 2, hdr_buf, INIT_ALLOC_SIZE);

	if (result)
@@ -489,6 +489,7 @@ static int ses_intf_add(struct class_device *cdev, 
		goto recv_failed;

	ses_dev->page2 = buf;

	ses_dev->page2_len = len;

	buf = NULL;



	/* The additional information page --- allows us

	 * to match up the devices */
@@ -506,9 +507,10 @@ static int ses_intf_add(struct class_device *cdev, 
		goto recv_failed;

	ses_dev->page10 = buf;

	ses_dev->page10_len = len;

	buf = NULL;



 no_page10:

	scomp = kmalloc(sizeof(struct ses_component) * components, GFP_KERNEL);

	scomp = kzalloc(sizeof(struct ses_component) * components, GFP_KERNEL);

	if (!scomp)

		goto err_free;
@@ -521,10 +523,9 @@ static int ses_intf_add(struct class_device *cdev, 


	edev->scratch = ses_dev;

	for (i = 0; i < components; i++)

		edev->component[i].scratch = scomp++;

		edev->component[i].scratch = scomp + i;



	/* Page 7 for the descriptors is optional */

	buf = NULL;

	result = ses_recv_diag(sdev, 7, hdr_buf, INIT_ALLOC_SIZE);

	if (result)

		goto simple_populate;
@@ -532,6 +533,8 @@ static int ses_intf_add(struct class_device *cdev, 
	len = (hdr_buf[2] << 8) + hdr_buf[3] + 4;

	/* add 1 for trailing '\0' we'll use */

	buf = kzalloc(len + 1, GFP_KERNEL);

	if (!buf)

		goto simple_populate;

	result = ses_recv_diag(sdev, 7, buf, len);

	if (result) {

 simple_populate:
@@ -598,6 +601,7 @@ static int ses_intf_add(struct class_device *cdev, 
	err = -ENODEV;

 err_free:

	kfree(buf);

	kfree(scomp);

	kfree(ses_dev->page10);

	kfree(ses_dev->page2);

	kfree(ses_dev->page1);
@@ -630,6 +634,7 @@ static void ses_intf_remove(struct class_device *cdev, 
	ses_dev = edev->scratch;

	edev->scratch = NULL;



	kfree(ses_dev->page10);

	kfree(ses_dev->page1);

	kfree(ses_dev->page2);

	kfree(ses_dev);