Re: [parisc-linux] [PATCH 2/2] Make pcibios_add_platform_entries() return errors

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On Tue, 2007-03-06 at 16:06 +0100, Michael Ellerman wrote:
 int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev)
@@ -644,10 +644,13 @@ int __must_check pci_create_sysfs_dev_fi
 		}
 	}
 	/* add platform-specific attributes */
-	pcibios_add_platform_entries(pdev);
+	if (pcibios_add_platform_entries(pdev))
+		goto err_rom_attr;
 
 	return 0;
 
+err_rom_attr:
+	sysfs_remove_bin_file(&pdev->dev.kobj, rom_attr);

This file is only created if the rom resource has a non-zero length.  If
you unconditionally call sysfs_remove_bin_file() it's going to spit
scary warnings and dump traces in this error leg if the rom resource
doesn't exist.

James


 err_rom:
 	kfree(rom_attr);
 err_bin_file:
Index: msi-new/include/linux/pci.h
===================================================================
--- msi-new.orig/include/linux/pci.h
+++ msi-new/include/linux/pci.h
@@ -857,7 +857,7 @@ extern int pci_pci_problems;
 extern unsigned long pci_cardbus_io_size;
 extern unsigned long pci_cardbus_mem_size;
 
-extern void pcibios_add_platform_entries(struct pci_dev *dev);
+extern int pcibios_add_platform_entries(struct pci_dev *dev);
 
 #endif /* __KERNEL__ */
 #endif /* LINUX_PCI_H */
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