Patchwork [2/5] PCI, sys: Use is_visable() with boot_vga attribute for pci_dev

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Submitter Yinghai Lu
Date Oct. 3, 2012, 5:51 p.m.
Message ID <1349286695-26713-3-git-send-email-yinghai@kernel.org>
Download mbox | patch
Permalink /patch/188876/
State Superseded
Headers show

Comments

Yinghai Lu - Oct. 3, 2012, 5:51 p.m.
That could let pci_create_sysfs_dev_files more simple.

also fix possible fix memleak during removing path.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
---
 drivers/pci/pci-sysfs.c |   21 ++++++++++-----------
 1 files changed, 10 insertions(+), 11 deletions(-)
Greg KH - Oct. 3, 2012, 7:28 p.m.
On Wed, Oct 03, 2012 at 10:51:32AM -0700, Yinghai Lu wrote:
> That could let pci_create_sysfs_dev_files more simple.
> 
> also fix possible fix memleak during removing path.
> 
> Signed-off-by: Yinghai Lu <yinghai@kernel.org>

This, combined with the 1/5 patch, looks great, thanks for doing this.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Patch

diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 3d160aa..fbbb97f 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -1303,29 +1303,20 @@  int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
 		pdev->rom_attr = attr;
 	}
 
-	if ((pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA) {
-		retval = device_create_file(&pdev->dev, &vga_attr);
-		if (retval)
-			goto err_rom_file;
-	}
-
 	/* add platform-specific attributes */
 	retval = pcibios_add_platform_entries(pdev);
 	if (retval)
-		goto err_vga_file;
+		goto err_rom_file;
 
 	/* add sysfs entries for various capabilities */
 	retval = pci_create_capabilities_sysfs(pdev);
 	if (retval)
-		goto err_vga_file;
+		goto err_rom_file;
 
 	pci_create_firmware_label_files(pdev);
 
 	return 0;
 
-err_vga_file:
-	if ((pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA)
-		device_remove_file(&pdev->dev, &vga_attr);
 err_rom_file:
 	if (rom_size) {
 		sysfs_remove_bin_file(&pdev->dev.kobj, pdev->rom_attr);
@@ -1413,12 +1404,20 @@  static int __init pci_sysfs_init(void)
 late_initcall(pci_sysfs_init);
 
 static struct attribute *pci_dev_dev_attrs[] = {
+	&vga_attr.attr,
 	NULL,
 };
 
 static umode_t pci_dev_attrs_are_visible(struct kobject *kobj,
 						struct attribute *a, int n)
 {
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct pci_dev *pdev = to_pci_dev(dev);
+
+	if (a == &vga_attr.attr)
+		if ((pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
+			return 0;
+
 	return a->mode;
 }