The timings of the poller calling have changed, digging out
a latent bug in pxa27x udc controller.
The polling routine is called before the probe function is
called, and the driver internal are not initialized at that
time. This triggers a NULL pointer exception.
Fix it by adding an extra check.
Signed-off-by: Robert Jarzmik <robert.jarzmik@xxxxxxx>
---
drivers/usb/gadget/pxa27x_udc.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c
index d0dbee9..bde9e74 100644
--- a/drivers/usb/gadget/pxa27x_udc.c
+++ b/drivers/usb/gadget/pxa27x_udc.c
@@ -1508,7 +1508,10 @@ static struct driver_d udc_driver = {
static int pxa27x_udc_poller(struct poller_struct *poller)
{
- return usb_gadget_poll();
+ if (the_controller)
+ return usb_gadget_poll();
+ else
+ return 0;
}
static struct poller_struct poller = {
.func = pxa27x_udc_poller
--
1.7.5.4
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