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| author | John Stultz <john.stultz@linaro.org> | 2011-07-20 17:09:34 -0700 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2011-08-01 22:06:50 +0300 |
| commit | 72c487dfb94d02025fb7437dfe2314d836d5a9ab (patch) | |
| tree | 047bb96aa1eb097f8ad14b15608efac18c3b2232 /net/nonet.c | |
| parent | d4aefec5daf51ebda90ebf0989598c206cf8e640 (diff) | |
| download | linux-stable-72c487dfb94d02025fb7437dfe2314d836d5a9ab.tar.gz linux-stable-72c487dfb94d02025fb7437dfe2314d836d5a9ab.tar.bz2 linux-stable-72c487dfb94d02025fb7437dfe2314d836d5a9ab.zip | |
usb: musb: fix oops on musb_gadget_pullup
an 'unhandled fault' is causes when a gadget driver calls
usb_gadget_connect() while the USB cable isn't plugged into
the OTG port.
the fault is caused by an access to MUSB's memory space
while its clock is turned off due to pm_runtime kicking
in.
in order to fix the fault, we enclose musb_gadget_pullup()
with pm_runtime_get_sync() ... pm_runtime_put() calls to
be sure we will always reach that path with clock turned on.
[ balbi@ti.com : simplified commit log; removed few things
which didn't belong there ]
Cc: stable@kernel.org
Reported-by: Zach Pfeffer <zach.pfeffer@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'net/nonet.c')
0 files changed, 0 insertions, 0 deletions