*** CID 1372598: Null pointer dereferences (FORWARD_NULL)
/lib/libefivar/efivar-dp-parse.c: 3612 in UefiDevicePathLibConvertTextToDeviceNode()
Dereferencing null pointer "FromText".
When ported from Tiano core, I commented this out with an ifdef. That
was in error because we're supposed to fallback to a filepath when
nothing else patches. Instead, restore the original code, but fix
DevPathFromTextFilePath to cope with the conversion to narrow
strings. Also, fix the off-by-one error in the size of the memory it
allocates.
The off by one error is documented in Tiano core bug
https://bugzilla.tianocore.org/show_bug.cgi?id=441
CID: 1372598
Sponsored by: Netflix
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