radeon_device_init() returns an error if either of the two calls to radeon_init() fail. One level up in the call stack, radeon_driver_load_kms() will then skip runtime pm initialization and call radeon_driver_unload_kms(), which acquires a runtime pm ref that is leaked.
Balance by releasing a runtime pm ref in the error path of radeon_device_init().
Fixes: 10ebc0bc0934 ("drm/radeon: add runtime PM support (v2)") Cc: Dave Airlie airlied@redhat.com Cc: Alex Deucher alexander.deucher@amd.com Signed-off-by: Lukas Wunner lukas@wunner.de --- drivers/gpu/drm/radeon/radeon_device.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index e721e6b..e0bf778 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -30,6 +30,7 @@ #include <drm/drmP.h> #include <drm/drm_crtc_helper.h> #include <drm/radeon_drm.h> +#include <linux/pm_runtime.h> #include <linux/vgaarb.h> #include <linux/vga_switcheroo.h> #include <linux/efi.h> @@ -1505,6 +1506,9 @@ int radeon_device_init(struct radeon_device *rdev, return 0;
failed: + /* balance pm_runtime_get_sync() in radeon_driver_unload_kms() */ + if (radeon_is_px(ddev)) + pm_runtime_put_noidle(ddev->dev); if (runtime) vga_switcheroo_fini_domain_pm_ops(rdev->dev); return r;