s390/cio,idal: code cleanup

Adjust coding style, partially refactor code, and use kcalloc()
instead of kmalloc() to allocate an idaw array.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2024-03-07 13:28:12 +01:00
commit 57bc3c2219