Enlarge the signature field to accept the string termination.

Cc: sta...@vger.kernel.org
Fixes: 93615d59912 ("Revert drm/i915/gvt: Fix out-of-bounds buffer write into 
opregion->signature[]")
Signed-off-by: Nicolas Chauvet <kwiz...@gmail.com>
---
 drivers/gpu/drm/i915/gvt/opregion.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gvt/opregion.c 
b/drivers/gpu/drm/i915/gvt/opregion.c
index 9a8ead6039e2..0f11cd6ba383 100644
--- a/drivers/gpu/drm/i915/gvt/opregion.c
+++ b/drivers/gpu/drm/i915/gvt/opregion.c
@@ -43,7 +43,7 @@
 #define DEVICE_TYPE_EFP4   0x10
 
 struct opregion_header {
-       u8 signature[16];
+       u8 signature[32];
        u32 size;
        u32 opregion_ver;
        u8 bios_ver[32];
-- 
2.49.0

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