drm:amdgpu:remove unneeded variable

return value form directly instead of
taking this in another redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cm>
Signed-off-by: chiminghao <chi.minghao@zte.com.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_ioc32.c

@@ -37,12 +37,9 @@
 long amdgpu_kms_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	unsigned int nr = DRM_IOCTL_NR(cmd);
-	int ret;
 
 	if (nr < DRM_COMMAND_BASE)
 		return drm_compat_ioctl(filp, cmd, arg);
 
-	ret = amdgpu_drm_ioctl(filp, cmd, arg);
-
-	return ret;
+	return amdgpu_drm_ioctl(filp, cmd, arg);
 }

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

@@ -1745,7 +1745,7 @@ static int gmc_v9_0_hw_init(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 	bool value;
-	int r, i;
+	int i;
 
 	/* The sequence of these two function calls matters.*/
 	gmc_v9_0_init_golden_registers(adev);
@@ -1780,9 +1780,7 @@ static int gmc_v9_0_hw_init(void *handle)
 	if (adev->umc.funcs && adev->umc.funcs->init_registers)
 		adev->umc.funcs->init_registers(adev);
 
-	r = gmc_v9_0_gart_enable(adev);
-
-	return r;
+	return gmc_v9_0_gart_enable(adev);
 }
 
 /**