[Intel-gfx] [PATCH] drm/i915/xehp: Fix missing sentinel on mcr_ranges_xehp

[Lucas De Marchi]

There's a missing sentinel since we are not using ARRAY_SIZE(), but rather
checking that the .start is 0 to stop the iteration in mcr_range().

	BUG: KASAN: global-out-of-bounds in mcr_range.isra.0+0x69/0xa0 [i915]
	Read of size 4 at addr ffffffffa0889928 by task modprobe/3881

Fixes: d8905ba705ab ("drm/i915/xehp: Define multicast register ranges")
Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
 drivers/gpu/drm/i915/gt/intel_workarounds.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 9173df59821a..053fa7251cd0 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -2000,6 +2000,7 @@ static const struct mcr_range mcr_ranges_xehp[] = {
 	{ .start =  0xdc00, .end =  0xffff },
 	{ .start = 0x17000, .end = 0x17fff },
 	{ .start = 0x24a00, .end = 0x24a7f },
+	{},
 };
 
 static bool mcr_range(struct drm_i915_private *i915, u32 offset)
-- 
2.31.1