powerpc: Fix signedness bug in update_flash_db()
The "count < sizeof(struct os_area_db)" comparison is type promoted to size_t so negative values of "count" are treated as very high values and we accidentally return success instead of a negative error code. This doesn't really change runtime much but it fixes a static checker warning. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Geoff Levand <geoff@infradead.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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