platform/x86/dell/dell-rbtn: Fix resources leaking on error path

Currently rbtn_add() in case of failure is leaking resources. Fix this
by adding a proper rollback. Move devm_kzalloc() before rbtn_acquire(),
so it doesn't require rollback in case of failure. While at it, remove
unnecessary assignment of NULL to device->driver_data and unnecessary
whitespace, plus add a break for the default case in a switch.

Suggested-by: Ilpo Järvinen <[email protected]>
Suggested-by: Pali Rohár <[email protected]>
Fixes: 817a5cdb40c8 ("dell-rbtn: Dell Airplane Mode Switch driver")
Signed-off-by: Michal Wilczynski <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Reviewed-by: Pali Rohár <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Hans de Goede <[email protected]>
Signed-off-by: Hans de Goede <[email protected]>

0 files changed, 0 insertions, 0 deletions