Refine code to make code run more safely.

[mirror_edk2.git] / OptionRomPkg / Library / FrameBufferBltLib / FrameBufferBltLib.c

diff --git a/OptionRomPkg/Library/FrameBufferBltLib/FrameBufferBltLib.c b/OptionRomPkg/Library/FrameBufferBltLib/FrameBufferBltLib.c
index cfd5212d482478eed64e68c986d11352f83fd0ed..2df840af15d8f5e4dfb673164400444537e9488c 100644 (file)
--- a/OptionRomPkg/Library/FrameBufferBltLib/FrameBufferBltLib.c
+++ b/OptionRomPkg/Library/FrameBufferBltLib/FrameBufferBltLib.c
@@ -66,7 +66,7 @@ ConfigurePixelBitMaskFormat (
   MergedMasks = (UINT32) (MergedMasks | Masks[3]);\r
 \r
   ASSERT (MergedMasks != 0);\r
-  mBltLibBytesPerPixel = (HighBitSet32 (MergedMasks) + 7) / 8;\r
+  mBltLibBytesPerPixel = (UINTN) ((HighBitSet32 (MergedMasks) + 7) / 8);\r
 \r
   DEBUG ((EFI_D_INFO, "Bytes per pixel: %d\n", mBltLibBytesPerPixel));\r
 \r