diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-02-23 10:22:13 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-02-23 10:22:13 +0000 |
| commit | d856c66618f953fc3cd1e613226d5f098ad322c8 (patch) | |
| tree | dce2070e912327921ad2d1635eaa0bf2cfb12047 /drivers/serial/8250.c | |
| parent | 85edae14e4ee5e68cf037e9e4bca7498ea16874d (diff) | |
| download | lwn-d856c66618f953fc3cd1e613226d5f098ad322c8.tar.gz lwn-d856c66618f953fc3cd1e613226d5f098ad322c8.zip | |
[SERIAL] Add comment about early_serial_setup()
early_serial_setup() must not be called after console initialisation.
Add a comment prior to the function explicitly stating this.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/serial/8250.c')
| -rw-r--r-- | drivers/serial/8250.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index 244e8ff11977..7aca22c9976d 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -2326,6 +2326,12 @@ static struct uart_driver serial8250_reg = { .cons = SERIAL8250_CONSOLE, }; +/* + * early_serial_setup - early registration for 8250 ports + * + * Setup an 8250 port structure prior to console initialisation. Use + * after console initialisation will cause undefined behaviour. + */ int __init early_serial_setup(struct uart_port *port) { if (port->line >= ARRAY_SIZE(serial8250_ports)) |