This commit to fix the following sparse warning:
incorrect type in assignment (different address spaces)
expected void *[assigned] userdata
got void [noderef] __user *userdata
Signed-off-by: Nguyen Dinh Phi <phind.uet@xxxxxxxxx>
---
.../staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index afbf01b7364c..2a4fc599f977 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -960,7 +960,10 @@ static int vchiq_irq_queue_bulk_tx_rx(struct vchiq_instance *instance,
current->pid);
userdata = &waiter->bulk_waiter;
} else {
- userdata = args->userdata;
+ if (copy_from_user(userdata, args->userdata, sizeof(args->userdata))) {
+ ret = -EFAULT;
+ goto out;
+ }
}
status = vchiq_bulk_transfer(args->handle, NULL, args->data, args->size,
--
2.25.1
