Messages in this thread | | | Date | Thu, 2 Jul 2015 10:50:07 -0700 | From | Andrew Duggan <> | Subject | Re: [PATCH 04/11] Input: synaptics-rmi4 - prevent oopses when irq arrives while the device is not bound |
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On 06/23/2015 12:17 PM, Benjamin Tissoires wrote: > If the device has been registered but is not populated, we should not > process any incoming interrupt. > Make sure the pointers we are following are valid. > > Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> > ---
Reviewed-by: Andrew Duggan <aduggan@synaptics.com>
> drivers/input/rmi4/rmi_driver.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c > index 2fdc7e8..fe5f2f9 100644 > --- a/drivers/input/rmi4/rmi_driver.c > +++ b/drivers/input/rmi4/rmi_driver.c > @@ -279,6 +279,9 @@ int rmi_process_interrupt_requests(struct rmi_device *rmi_dev) > struct rmi_function *entry; > int error; > > + if (!data || !data->f01_container || !data->irq_status) > + return 0; > + > error = rmi_read_block(rmi_dev, > data->f01_container->fd.data_base_addr + 1, > data->irq_status, data->num_of_irq_regs);
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