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fix early_serial_setup() regression

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Commit b430428a18 ("8250: Don't clobber
spinlocks.") introduced a regression on the parisc architecture, which
broke the handover to the serial port at boottime.

early_serial_setup() was changed to only copy a subset of the uart_port
fields, and sadly the "type" and "line" fields were forgotten and thus
the serial port was not initialized and could not be used for a
handover.  This patch fixes this by copying the missing fields.

As this change to early_serial_setup() doesn't need an initialized
spinlock in the uart_port struct any longer, we can drop the spinlock
initialization in the superio driver.

Cc: David Daney <[email protected]>
Cc: Tomaso Paoletti <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Alan Cox <[email protected]>
Acked-by: Kyle McMartin <[email protected]>
Cc: [email protected]
Signed-off-by: Helge Deller <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Helge Deller 2009-01-13 22:51:07 +01:00 • committed by Linus Torvalds
commit 125c97d8a5
2 changed files with 2 additions and 1 deletions
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2
drivers/serial/8250.c
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@ -2839,6 +2839,8 @@ int __init early_serial_setup(struct uart_port *port)
p->flags = port->flags;
p->mapbase = port->mapbase;
p->private_data = port->private_data;
p->type = port->type;
p->line = port->line;
set_io_from_upio(p);
if (port->serial_in)