Commit 5e25db87 authored May 09, 2016 by William Breathitt Gray Committed by Greg Kroah-Hartman Jun 17, 2016

isa: Dummy isa_register_driver should return error code



The inline isa_register_driver stub simply allows compilation on systems
with CONFIG_ISA disabled; the dummy isa_register_driver does not
register an isa_driver at all. The inline isa_register_driver should
return -ENODEV to indicate lack of support when attempting to register
an isa_driver on such a system with CONFIG_ISA disabled.

Cc: Matthew Wilcox <matthew@wil.cx>
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Tested-by: Ye Xiaolong
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 32a5a0c0

include/linux/isa.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -6,6 +6,7 @@
		#define __LINUX_ISA_H

		#include <linux/device.h>
		#include <linux/errno.h>
		#include <linux/kernel.h>

		struct isa_driver {
		@@ -28,7 +29,7 @@ void isa_unregister_driver(struct isa_driver *);
		#else
		static inline int isa_register_driver(struct isa_driver *d, unsigned int i)
		{
		return 0;
		return -ENODEV;
		}

		static inline void isa_unregister_driver(struct isa_driver *d)

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