From: David S. Miller <davem@davemloft.net>
Date: Mon, 13 Oct 2008 09:45:26 +0000 (+0100)
Subject: serial: fix device name reporting when minor space is shared between drivers
X-Git-Tag: v2.6.28-rc1~616
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8440838bc5337243917f13bc14ea2445da5e0197;p=pandora-kernel.git

serial: fix device name reporting when minor space is shared between drivers

The multiple drivers share the minor space occupied by a particular major
number, the actual index within the device name's space is indicated by
the tty_driver->name_base + uart_port->line

Another usable formula is (uart_driver->minor - MINOR_BASE) + port->line

Use those to print the device names properly in such situations in
serial_core.c and 8250.c

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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