media: ov2740: define most fields on variable declaration

This also removes initializing reg_write to NULL, which will help with
changing its signature in nvmem-provider[1].

Thanks to Sakari Ailus for their suggestion[2]!

[1] https://lore.kernel.org/rust-for-linux/20260716142415.28718-1-linkmauve@linkmauve.fr/
[2] https://lore.kernel.org/rust-for-linux/al3sxMUgeK49dwNs@kekkonen.localdomain/

Signed-off-by: Link Mauve <linkmauve@linkmauve.fr>
Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
This commit is contained in:
Link Mauve 2026-07-26 14:45:30 +02:00 • committed by Sakari Ailus
commit 665cf662a0