usb: musb: Fix external abort on non-linefetch for musb_irq_work()
authorTony Lindgren <tony@atomide.com>
Tue, 24 Jan 2017 15:18:58 +0000 (09:18 -0600)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 25 Jan 2017 10:02:29 +0000 (11:02 +0100)
commit3ba7b7795b7e8889af1377904c55c7fae9e0c775
treebd9ed8b22bb26f0a21a746f2d779f13d9098a77f
parent407788b51db6f6aab499d02420082f436abf3238
usb: musb: Fix external abort on non-linefetch for musb_irq_work()

While testing musb host mode cable plugging on a BeagleBone, I came across this
error:

Unhandled fault: external abort on non-linefetch (0x1008) at 0xd1dcfc60
...
[<bf668390>] (musb_default_readb [musb_hdrc]) from [<bf668578>] (musb_irq_work+0x1c/0x180 [musb_hdrc])
[<bf668578>] (musb_irq_work [musb_hdrc]) from [<c0156554>] (process_one_work+0x2b4/0x808)
[<c0156554>] (process_one_work) from [<c015767c>] (worker_thread+0x3c/0x550)
[<c015767c>] (worker_thread) from [<c015d568>] (kthread+0x104/0x148)
[<c015d568>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/musb/musb_core.c