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drm/xe: Add a NULL check in xe_ttm_stolen_mgr_init

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BugLink: https://bugs.launchpad.net/bugs/2076435

[ Upstream commit a6eff8f9c7e844cb24ccb188ca24abcd59734e74 ]

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
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Portia Stephens <portia.stephens@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Nirmoy Das
2024-03-19 14:09:25 +01:00
committed by Stefan Bader
parent b8bf54697d
commit 3da3bc7fdb
1 changed files with 5 additions and 0 deletions
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drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c
+5
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@@ -205,6 +205,11 @@ 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_DGFX(xe))
stolen_size = detect_bar2_dgfx(xe, mgr);
else if (GRAPHICS_VERx100(xe) >= 1270)