[MTD] cmdlinepart.c: don't compare pointers with 0

Sparse spotted that 0 was compared to pointers.

While I was at it, I also moved the assignments out of the if's.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
1 file changed