RefRefine soma code to make code run safely.

[mirror_edk2.git] / PcAtChipsetPkg / Library / SerialIoLib / SerialPortLib.c

diff --git a/PcAtChipsetPkg/Library/SerialIoLib/SerialPortLib.c b/PcAtChipsetPkg/Library/SerialIoLib/SerialPortLib.c
index 3c39f37432e3c42f646239175d2f518fbfbf810e..6bf705312d88fd6f9624f954053575e1f7b21e3f 100644 (file)
--- a/PcAtChipsetPkg/Library/SerialIoLib/SerialPortLib.c
+++ b/PcAtChipsetPkg/Library/SerialIoLib/SerialPortLib.c
@@ -137,7 +137,7 @@ SerialPortWrite (
 \r
   Result = NumberOfBytes;\r
 \r
-  while (NumberOfBytes--) {\r
+  while ((NumberOfBytes--) != 0) {\r
     //\r
     // Wait for the serail port to be ready.\r
     //\r
@@ -178,7 +178,7 @@ SerialPortRead (
 \r
   Result = NumberOfBytes;\r
 \r
-  while (NumberOfBytes--) {\r
+  while ((NumberOfBytes--) != 0) {\r
     //\r
     // Wait for the serail port to be ready.\r
     //\r