Richard Weinberger 4756227734 um: call free_irq() only on enabled channels ... When I use OpenSUSE-11.2 on UML (> 2.6.25) I get lots of such errors: Registering fd 1 twice Irqs : 3, 3 Ids : 0x09cb41a0, 0x09cb4120 ------------[ cut here ]------------ WARNING: at kernel/irq/manage.c:896 __free_irq+0x79/0x11a() Trying to free already-free IRQ 3 Modules linked in: 09dadc6c: [<081b2edb>] dump_stack+0x1c/0x20 09dadc84: [<080716da>] warn_slowpath_common+0x49/0x77 09dadc9c: [<08071772>] warn_slowpath_fmt+0x26/0x2a 09dadcb4: [<08094e08>] __free_irq+0x79/0x11a 09dadce4: [<08094ed6>] free_irq+0x2d/0x49 09dadcf4: [<0805b4bc>] close_one_chan+0x70/0x9c 09dadd0c: [<0805b833>] close_chan+0x17/0x22 09dadd1c: [<0805bdda>] enable_chan+0x70/0x7c 09dadd3c: [<0805cbb7>] line_open+0x34/0x9f 09dadd54: [<0805b21e>] con_open+0x13/0x35 09dadd6c: [<0814dc89>] tty_open+0x285/0x384 09dadda0: [<080b754e>] chrdev_open+0xe0/0xf9 09daddc0: [<080b3fb2>] __dentry_open+0xf3/0x1e2 09dadde4: [<080b4142>] nameidata_to_filp+0x35/0x49 09daddfc: [<080bd270>] do_last+0x409/0x50e 09dade28: [<080bea04>] do_filp_open+0x175/0x446 09dadecc: [<080b3d89>] do_sys_open+0x4a/0x128 09dadf04: [<080b3ea2>] sys_open+0x19/0x21 09dadf28: [<0805ab5a>] handle_syscall+0x7a/0x98 09dadf78: [<08068441>] userspace+0x2c9/0x370 09dadfe0: [<08058bb3>] fork_handler+0x53/0x5b 09dadffc: [<00766564>] 0x766564 ---[ end trace 9ebc1094aaf4bded ]--- This patch fixes the issue. Signed-off-by: Richard Weinberger <richard@nod.at> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2010-08-09 20:45:04 -07:00
..
drivers	um: call free_irq() only on enabled channels	2010-08-09 20:45:04 -07:00
include	um, x86: Cast to (u64 *) inside set_64bit()	2010-08-03 07:00:16 -07:00
kernel	um: Fix read_persistent_clock fallout	2010-08-03 20:36:07 +02:00
os-Linux	um: os-linux/mem.c needs sys/stat.h	2010-06-29 15:29:32 -07:00
scripts
sys-i386	Merge branch 'master' into for-next	2010-04-23 02:08:44 +02:00
sys-ia64	uml: remove useless comments	2009-04-01 08:59:17 -07:00
sys-ppc	elf: kill USE_ELF_CORE_DUMP	2009-12-16 07:20:12 -08:00
sys-x86_64	UML: Fix compiler warning due to missing task_struct declaration	2010-04-21 01:43:03 +02:00
.gitignore	um: tell git to ignore generated files	2010-03-06 11:26:28 -08:00
defconfig	UML: update defconfig	2008-02-23 17:12:13 -08:00
Kconfig.char	sound: make OSS sound core optional	2008-08-29 10:06:21 +02:00
Kconfig.common	time: Kill off CONFIG_GENERIC_TIME	2010-07-27 12:40:54 +02:00
Kconfig.debug	uml: GPROF needs to depend on FRAME_POINTER	2008-02-05 09:44:25 -08:00
Kconfig.net	uml: fix URLs in Kconfig and help strings	2008-02-05 09:44:25 -08:00
Kconfig.rest	uml: kill a kconfig warning	2009-04-21 13:41:50 -07:00
Kconfig.um	x86, um: get rid of arch/um/Kconfig.arch	2008-10-22 22:55:23 -07:00
Kconfig.x86	x86, um: get rid of arch/um/Kconfig.arch	2008-10-22 22:55:23 -07:00
Makefile	kbuild: move asm-offsets.h to include/generated	2009-12-12 13:08:14 +01:00
Makefile-i386	[UML] fix gcc ICEs and unresolved externs	2008-07-07 10:53:10 -07:00
Makefile-ia64
Makefile-os-Linux	x86, um: get rid of arch/um/os symlink	2008-10-22 22:55:22 -07:00
Makefile-ppc
Makefile-skas
Makefile-x86_64	[UML] fix gcc ICEs and unresolved externs	2008-07-07 10:53:10 -07:00