Johan Hovold b193b412e6 usb: musb: omap2430: fix kernel panic on reboot ... Cancel idle timer in musb_platform_exit. The idle timer could trigger after clock had been disabled leading to kernel panic when MUSB_DEVCTL is accessed in musb_do_idle on 2.6.37. The fault below is no longer triggered on 2.6.38-rc4 (clock is disabled later, and only if compiled as a module, and the offending memory access has moved) but the timer should be cancelled nonetheless. Rebooting... musb_hdrc musb_hdrc: remove, state 4 usb usb1: USB disconnect, address 1 musb_hdrc musb_hdrc: USB bus 1 deregistered Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa0ab060 Internal error: : 1028 [#1] PREEMPT last sysfs file: /sys/kernel/uevent_seqnum Modules linked in: CPU: 0 Not tainted (2.6.37+ #6) PC is at musb_do_idle+0x24/0x138 LR is at musb_do_idle+0x18/0x138 pc : [<c02377d8>] lr : [<c02377cc>] psr: 80000193 sp : cf2bdd80 ip : cf2bdd80 fp : c048a20c r10: c048a60c r9 : c048a40c r8 : cf85e110 r7 : cf2bc000 r6 : 40000113 r5 : c0489800 r4 : cf85e110 r3 : 00000004 r2 : 00000006 r1 : fa0ab000 r0 : cf8a7000 Flags: Nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user Control: 10c5387d Table: 8faac019 DAC: 00000015 Process reboot (pid: 769, stack limit = 0xcf2bc2f0) Stack: (0xcf2bdd80 to 0xcf2be000) dd80: 00000103 c0489800 c02377b4 c005fa34 00000555 c0071a8c c04a3858 cf2bdda8 dda0: 00000555 c048a00c cf2bdda8 cf2bdda8 1838beb0 00000103 00000004 cf2bc000 ddc0: 00000001 00000001 c04896c8 0000000a 00000000 c005ac14 00000001 c003f32c dde0: 00000000 00000025 00000000 cf2bc000 00000002 00000001 cf2bc000 00000000 de00: 00000001 c005ad08 cf2bc000 c002e07c c03ec039 ffffffff fa200000 c0033608 de20: 00000001 00000000 cf852c14 cf81f200 c045b714 c045b708 cf2bc000 c04a37e8 de40: c0033c04 cf2bc000 00000000 00000001 cf2bde68 cf2bde68 c01c3abc c004f7d8 de60: 60000013 ffffffff c0033c04 00000000 01234567 fee1dead 00000000 c006627c de80: 00000001 c00662c8 28121969 c00663ec cfa38c40 cf9f6a00 cf2bded0 cf9f6a0c dea0: 00000000 cf92f000 00008914 c02cd284 c04a55c8 c028b398 c00715c0 becf24a8 dec0: 30687465 00000000 00000000 00000000 00000002 1301a8c0 00000000 00000000 dee0: 00000002 1301a8c0 00000000 00000000 c0450494 cf527920 00011f10 cf2bdf08 df00: 00011f10 cf2bdf10 00011f10 cf2bdf18 c00f0b44 c004f7e8 cf2bdf18 cf2bdf18 df20: 00011f10 cf2bdf30 00011f10 cf2bdf38 cf401300 cf486100 00000008 c00d2b28 df40: 00011f10 cf401300 00200200 c00d3388 00011f10 cfb63a88 cfb63a80 c00c2f08 df60: 00000000 00000000 cfb63a80 00000000 cf0a3480 00000006 c0033c04 cfb63a80 df80: 00000000 c00c0104 00000003 cf0a3480 cfb63a80 00000000 00000001 00000004 dfa0: 00000058 c0033a80 00000000 00000001 fee1dead 28121969 01234567 00000000 dfc0: 00000000 00000001 00000004 00000058 00000001 00000001 00000000 00000001 dfe0: 4024d200 becf2cb0 00009210 4024d218 60000010 fee1dead 00000000 00000000 [<c02377d8>] (musb_do_idle+0x24/0x138) from [<c005fa34>] (run_timer_softirq+0x1a8/0x26) [<c005fa34>] (run_timer_softirq+0x1a8/0x26c) from [<c005ac14>] (__do_softirq+0x88/0x13) [<c005ac14>] (__do_softirq+0x88/0x138) from [<c005ad08>] (irq_exit+0x44/0x98) [<c005ad08>] (irq_exit+0x44/0x98) from [<c002e07c>] (asm_do_IRQ+0x7c/0xa0) [<c002e07c>] (asm_do_IRQ+0x7c/0xa0) from [<c0033608>] (__irq_svc+0x48/0xa8) Exception stack(0xcf2bde20 to 0xcf2bde68) de20: 00000001 00000000 cf852c14 cf81f200 c045b714 c045b708 cf2bc000 c04a37e8 de40: c0033c04 cf2bc000 00000000 00000001 cf2bde68 cf2bde68 c01c3abc c004f7d8 de60: 60000013 ffffffff [<c0033608>] (__irq_svc+0x48/0xa8) from [<c004f7d8>] (sub_preempt_count+0x0/0xb8) Code: ebf86030 e5940098 e594108c e5902010 (e5d13060) ---[ end trace 3689c0d808f9bf7c ]--- Kernel panic - not syncing: Fatal exception in interrupt Cc: stable@kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>		2011-02-17 14:34:17 +02:00
..
Kconfig	usb: musb: TWL6030: Selecting TWL6030_USB transceiver	2010-12-10 14:45:59 +02:00
Makefile	usb: musb: add support for ux500 platform	2010-12-10 10:21:36 +02:00
am35x.c	musb: am35x: fix compile error due to control apis	2010-12-10 10:21:35 +02:00
blackfin.c	usb: musb: disable double buffering when it's broken	2011-02-01 10:41:30 +02:00
blackfin.h	USB: musb: workaround Blackfin FIFO anomalies	2009-12-23 11:34:19 -08:00
cppi_dma.c	usb: musb: add names for IRQs in structure resource	2010-12-01 10:56:33 +02:00
cppi_dma.h	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
da8xx.c	usb: musb: drop board_set_vbus	2010-12-10 10:21:33 +02:00
davinci.c	usb: musb: drop board_set_vbus	2010-12-10 10:21:33 +02:00
davinci.h	USB: musb: partial DaVinci dm355 support	2009-03-24 16:20:36 -07:00
musb_core.c	usb: musb: core: fix IRQ check	2011-02-01 10:41:29 +02:00
musb_core.h	usb: musb: fix build breakage	2011-02-17 14:34:17 +02:00
musb_debug.h	USB: musb: make DBG() calls actually depend on CONFIG_USB_MUSB_DEBUG	2010-10-22 10:21:52 -07:00
musb_debugfs.c	headers: kobject.h redux	2011-01-10 08:51:44 -08:00
musb_dma.h	usb: musb: introduce api for dma code to check compatibility with usb request	2011-02-01 10:41:30 +02:00
musb_gadget.c	usb: musb: introduce api for dma code to check compatibility with usb request	2011-02-01 10:41:30 +02:00
musb_gadget.h	usb: musb: maintain three states for buffer mappings instead of two	2011-02-01 10:41:30 +02:00
musb_gadget_ep0.c	usb: musb: gadget: restart request on clearing endpoint halt	2010-09-24 11:05:01 -07:00
musb_host.c	usb: musb: disable double buffering when it's broken	2011-02-01 10:41:30 +02:00
musb_host.h	musb: add high bandwidth ISO support	2009-06-15 21:44:41 -07:00
musb_io.h	usb: musb: add Kconfig options for each glue layer	2010-12-10 10:21:09 +02:00
musb_regs.h	Merge branch 'usb-next' into musb-merge	2010-12-16 10:05:06 -08:00
musb_virthub.c	usb: musb: make all glue layer export struct musb_platform_ops	2010-12-07 09:19:39 +02:00
musbhsdma.c	Merge branch 'usb-next' into musb-merge	2010-12-16 10:05:06 -08:00
musbhsdma.h	usb: musb: hsdma: change back to use musb_read/writew	2011-02-01 10:41:30 +02:00
omap2430.c	usb: musb: omap2430: fix kernel panic on reboot	2011-02-17 14:34:17 +02:00
omap2430.h	USB: musb: get rid of omap_readl/writel	2010-03-02 14:54:38 -08:00
tusb6010.c	usb: musb: move clock handling to glue layer	2010-12-10 10:21:24 +02:00
tusb6010.h	USB: musb: Remove my email address from few musb related drivers	2009-04-23 14:15:27 -07:00
tusb6010_omap.c	usb: Fix tusb6010 for DMA API	2010-04-30 09:25:09 -07:00
ux500.c	usb: musb: add support for ux500 platform	2010-12-10 10:21:36 +02:00