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-rw-r--r--EmbeddedPkg/SerialDxe/SerialIo.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/EmbeddedPkg/SerialDxe/SerialIo.c b/EmbeddedPkg/SerialDxe/SerialIo.c
index b9ea4b9c42..fe0b1711a8 100644
--- a/EmbeddedPkg/SerialDxe/SerialIo.c
+++ b/EmbeddedPkg/SerialDxe/SerialIo.c
@@ -193,8 +193,12 @@ SerialRead (
if (SerialPortPoll()) {
Count = SerialPortRead (Buffer, *BufferSize);
*BufferSize = Count;
+ return (Count == 0) ? EFI_DEVICE_ERROR : EFI_SUCCESS;
}
- return (Count == 0) ? EFI_DEVICE_ERROR : EFI_SUCCESS;
+
+ // No data to return
+ *BufferSize = 0;
+ return EFI_SUCCESS;
}