Check for failed allocations. Spotted by Martin Bealby.

svn path=/trunk/; revision=20118

diff --git a/reactos/lib/user32/misc/winhelp.c b/reactos/lib/user32/misc/winhelp.c
index 3a8c553..8abf11b 100644 (file)
--- a/reactos/lib/user32/misc/winhelp.c
+++ b/reactos/lib/user32/misc/winhelp.c
@@ -107,6 +107,8 @@ WinHelpA(HWND hWnd, LPCSTR lpszHelp, UINT uCommand, DWORD dwData)
                nlen = 0;
        size = sizeof(WINHELP) + nlen + dsize;
        hwh = GlobalAlloc(0,size);
+       if (hwh == NULL)
+               return FALSE;
        lpwh = GlobalLock(hwh);
        lpwh->size = size;
        lpwh->command = uCommand;