drm/xe: Add a NULL check in xe_ttm_stolen_mgr_init

Add an explicit check to ensure that the mgr is not NULL.

Cc: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240319130925.22399-1-nirmoy.das@intel.com

diff --git a/drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c b/drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c
index 3107d2a12426ca42ffb824e3de6f92d57edec0da..fb35e46d68b4982de2483dbf6b86bcb6698d2972 100644 (file)
--- a/drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c
+++ b/drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c
@@ -207,6 +207,11 @@ void xe_ttm_stolen_mgr_init(struct xe_device *xe)
        u64 stolen_size, io_size, pgsize;
        int err;
 
+       if (!mgr) {
+               drm_dbg_kms(&xe->drm, "Stolen mgr init failed\n");
+               return;
+       }
+
        if (IS_SRIOV_VF(xe))
                stolen_size = 0;
        else if (IS_DGFX(xe))