[PATCH] drm/amdgpu: Fix the null pointer about get vbios

[Emily Deng]

Move the get vbios only before SDMA block early init to fix null pointer
about get vbios.

Signed-off-by: Emily Deng <Emily.Deng at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 4a836db..830c4b8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1534,18 +1534,19 @@ static int amdgpu_device_ip_early_init(struct amdgpu_device *adev)
 	if (amdgpu_sriov_vf(adev))
 		adev->pm.pp_feature &= ~PP_GFXOFF_MASK;
 
-	/* Read BIOS */
-	if (!amdgpu_get_bios(adev))
-		return -EINVAL;
-
-	r = amdgpu_atombios_init(adev);
-	if (r) {
-		dev_err(adev->dev, "amdgpu_atombios_init failed\n");
-		amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL, 0, 0);
-		return r;
-	}
-
 	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if ( adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SDMA ) {
+			/* Read BIOS */
+			if (!amdgpu_get_bios(adev))
+				return -EINVAL;
+
+			r = amdgpu_atombios_init(adev);
+			if (r) {
+				dev_err(adev->dev, "amdgpu_atombios_init failed\n");
+				amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL, 0, 0);
+				return r;
+			}
+		}
 		if ((amdgpu_ip_block_mask & (1 << i)) == 0) {
 			DRM_ERROR("disabled ip block: %d <%s>\n",
 				  i, adev->ip_blocks[i].version->funcs->name);
-- 
2.7.4