MGS-2619-3 [#imx-188] fix kernel panic with rmmod

should unregister platform driver before device driver

Date: Mar 06, 2017
Signed-off-by: Xianzhong <xianzhong.li@nxp.com>

diff --git a/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_driver.c b/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_driver.c
index 405c258..622dc15 100644 (file)
--- a/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_driver.c
+++ b/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_driver.c
@@ -1420,11 +1420,12 @@ out:
 
 static void __exit gpu_exit(void)
 {
+    platform_driver_unregister(&gpu_driver);
+
     if (platform.ops->unRegisterDevice)
     {
         platform.ops->unRegisterDevice(&platform);
     }
-    platform_driver_unregister(&gpu_driver);
 
     if (platform.ops->needAddDevice
      && platform.ops->needAddDevice(&platform))