diff options
| author | Qiu Shumin <shumin.qiu@intel.com> | 2016-02-22 10:21:38 +0800 |
|---|---|---|
| committer | Hao Wu <hao.a.wu@intel.com> | 2016-07-13 20:42:04 +0800 |
| commit | 863210e7b05f5edbe16fbb2ef8c8c6191a301da3 (patch) | |
| tree | 5c6792d9004f8bb56715503fc96ce7f455412021 /ShellPkg/Library/UefiShellLib | |
| parent | 552057436657ab09df3306ad272930a9fa029fa8 (diff) | |
| download | edk2-platforms-863210e7b05f5edbe16fbb2ef8c8c6191a301da3.tar.xz | |
ShellPkg: Do NULL pointer check before the pointer is used.
Do NULL pointer check before the pointer is used to avoid dereferenced.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Qiu Shumin <shumin.qiu@intel.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
(cherry picked from commit e3b76f3b5e80df1219fb4adf0199b9606e84b8e7)
Diffstat (limited to 'ShellPkg/Library/UefiShellLib')
| -rw-r--r-- | ShellPkg/Library/UefiShellLib/UefiShellLib.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/ShellPkg/Library/UefiShellLib/UefiShellLib.c b/ShellPkg/Library/UefiShellLib/UefiShellLib.c index 70852a93f2..cf89a4ac87 100644 --- a/ShellPkg/Library/UefiShellLib/UefiShellLib.c +++ b/ShellPkg/Library/UefiShellLib/UefiShellLib.c @@ -4071,7 +4071,7 @@ ShellFileHandleReturnLine( Status = ShellFileHandleReadLine(Handle, RetVal, &Size, FALSE, Ascii);
}
- if (Status == EFI_END_OF_FILE && *RetVal != CHAR_NULL) {
+ if (Status == EFI_END_OF_FILE && RetVal != NULL && *RetVal != CHAR_NULL) {
Status = EFI_SUCCESS;
}
if (EFI_ERROR(Status) && (RetVal != NULL)) {
|