drm/radeon/kms: Don't try to process irq when we are unloading

If module is being unloaded we should not try to handle irq especialy
we should not call into drm helper or we could hard hang the computer
free_irq will call the irq handler to make sure we behave properly.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 4e1c55162ccb59a5d1b292233099759de9b147b1..4dd5ca50c0c554abe5faad7ec91903df75d7e3d9 100644 (file)
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -319,6 +319,9 @@ int r100_irq_process(struct radeon_device *rdev)
        if (!status) {
                return IRQ_NONE;
        }
+       if (rdev->shutdown) {
+               return IRQ_NONE;
+       }
        while (status) {
                /* SW interrupt */
                if (status & RADEON_SW_INT_TEST) {