staging: panel: fix regression in lcd_write

This patch fix a regression in lcd_write caused by commit
70a8c3eb8546cefe40fb0bc7991e8899b7b91075

Signed-off-by: Bastien Armand <armand.bastien@laposte.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 file changed