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authorPedroa Liu <pedroa.liu@insyde.com>2016-05-16 20:48:41 +0800
committerQiu Shumin <shumin.qiu@intel.com>2016-05-18 09:41:29 +0800
commitb8f3601daae5c8b50ca6f7da74bb150f2eef9453 (patch)
tree047ef79c2bd699bb4ea30b9e7b7dda298bf9eaed /ShellPkg
parentc28d2e1047816164ffec552e4a3375122cbcc6b6 (diff)
downloadedk2-platforms-b8f3601daae5c8b50ca6f7da74bb150f2eef9453.tar.xz
ShellPkg: Fix the incorrect behavior when pressing 'shift' key.
If 'ReadKeyStroke' function return EFI_NOT_READY then skip it. If the return value is EFI_DEVICE_ERROR clean the currentString buffer. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Pedroa Liu <pedroa.liu@insyde.com> Reviewed-by: Qiu Shumin <shumin.qiu@intel.com>
Diffstat (limited to 'ShellPkg')
-rw-r--r--ShellPkg/Application/Shell/FileHandleWrappers.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/ShellPkg/Application/Shell/FileHandleWrappers.c b/ShellPkg/Application/Shell/FileHandleWrappers.c
index 0e5efe3025..f64915d9ed 100644
--- a/ShellPkg/Application/Shell/FileHandleWrappers.c
+++ b/ShellPkg/Application/Shell/FileHandleWrappers.c
@@ -422,6 +422,12 @@ FileInterfaceStdInRead(
gBS->WaitForEvent (1, &gST->ConIn->WaitForKey, &EventIndex);
Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
if (EFI_ERROR (Status)) {
+
+ if (Status == EFI_NOT_READY)
+ continue;
+
+ ZeroMem (CurrentString, MaxStr * sizeof(CHAR16));
+ StringLen = 0;
break;
}