[DRIVERS] ide: fix uninitialized variable.

This patch fixes "CID 1170853 Uninitialized scalar variable"
reported by coverity scan.

Signed-off-by: Jean-Christophe DUBOIS <jcd@tribudubois.net>
[DRIVERS] i8042: Fix Unchecked return value

This patch fixes "CID 402390 Unchecked return value"
reported by coverity scan.

Signed-off-by: Jean-Christophe DUBOIS <jcd@tribudubois.net>