drm/amd/powerplay: Fix NULL pointer deref on driver unbind.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index 3da3dccd13e2a03084e3f0ad308b7fb8ba089fd6..dbb0e691bc89eb7cd1a0d8a13223dbc1dcf65db5 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -286,6 +286,12 @@ static int pp_resume(void *handle)
        return hwmgr_hw_resume(hwmgr);
 }
 
+static int pp_set_clockgating_state(void *handle,
+                                         enum amd_clockgating_state state)
+{
+       return 0;
+}
+
 static const struct amd_ip_funcs pp_ip_funcs = {
        .name = "powerplay",
        .early_init = pp_early_init,
@@ -300,7 +306,7 @@ static const struct amd_ip_funcs pp_ip_funcs = {
        .is_idle = pp_is_idle,
        .wait_for_idle = pp_wait_for_idle,
        .soft_reset = pp_sw_reset,
-       .set_clockgating_state = NULL,
+       .set_clockgating_state = pp_set_clockgating_state,
        .set_powergating_state = pp_set_powergating_state,
 };