Since it is easy to trigger a stack overflow with variable-length arrays,
use dynamic memory allocation instead of VLAs. Add -Wvla to the compiler
options such that no new VLAs get introduced.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Since the argument num_blocks - i is passed as the LBA argument
to COMPAREANDWRITE(), avoid that a negative number is passed.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
