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(parent: 0ad7c9a) | patch
TTY: serial_core, remove invalid test
authorJiri Slaby <jslaby@suse.cz>
Wed, 20 Apr 2011 08:43:16 +0000 (10:43 +0200)
committerGreg Kroah-Hartman <gregkh@suse.de>
Mon, 25 Apr 2011 21:19:11 +0000 (14:19 -0700)
commit32ad3a77b256948a326c3f68db6acaad2b6953e7
tree18db761371c8875bcb1bd68d5e56ff4389aa96f4tree | snapshot
parent0ad7c9af3e1cbb97082062266705d6cb5fb207eecommit | diff
TTY: serial_core, remove invalid test

tty->index (named here as line) is set up in initialize_tty_struct.
The value is checked in get_tty_driver for the found driver as:
if (device < base || device >= base + p->num)
continue;
*index = device - base;

So index/line can never be more than driver->num. Hence remove this
test from uart_open.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/tty/serial/serial_core.c diff | blob | history
Domain: System / Kernel;