serial: omap: define and use to_uart_omap_port()
authorFelipe Balbi <balbi@ti.com>
Thu, 23 Aug 2012 10:32:41 +0000 (13:32 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 5 Sep 2012 20:26:10 +0000 (13:26 -0700)
commitc990f3510357586be63bbe9faf7972212a0dc78f
treef31e6ce4928c549a80637c968f1b3924de981339
parentbe282059acebcecd789fad1b3d17d826db3d5608
serial: omap: define and use to_uart_omap_port()

current code only works because struct uart_port
is the first member on the uart_omap_port structure.

If, for whatever reason, someone puts another
member as the first of the structure, that cast
won't work anymore. In order to be safe, let's use
a container_of() which, for now, gets optimized into
a cast anyway.

Tested-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/arm/plat-omap/include/plat/omap-serial.h
drivers/tty/serial/omap-serial.c