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@xxxxxxxxxx>
---
Reviewed-by: Andrew Duggan <aduggan@xxxxxxxxxxxxx>
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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