The patch titled
serial: fix serial_match_port() for dynamic major tty-device numbers
has been removed from the -mm tree. Its filename was
serial-fix-serial_match_port-for-dynamic-major-tty-device-numbers.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
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Subject: serial: fix serial_match_port() for dynamic major tty-device numbers
From: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
As reported by Vipul Gandhi, the current serial_match_port() doesn't work
for tty-devices using dynamic major number allocation. Fix it.
It oopses if you suspend a serial port with _dynamic_ major number. ATM,
I think, there's only the drivers/serial/jsm/jsm_driver.c driver, that
does it in-tree.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
Tested-by: Vipul Gandhi <vcgandhi1@xxxxxxx>
Cc: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/serial/serial_core.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff -puN drivers/serial/serial_core.c~serial-fix-serial_match_port-for-dynamic-major-tty-device-numbers drivers/serial/serial_core.c
--- a/drivers/serial/serial_core.c~serial-fix-serial_match_port-for-dynamic-major-tty-device-numbers
+++ a/drivers/serial/serial_core.c
@@ -1991,7 +1991,9 @@ struct uart_match {
static int serial_match_port(struct device *dev, void *data)
{
struct uart_match *match = data;
- dev_t devt = MKDEV(match->driver->major, match->driver->minor) + match->port->line;
+ struct tty_driver *tty_drv = match->driver->tty_driver;
+ dev_t devt = MKDEV(tty_drv->major, tty_drv->minor_start) +
+ match->port->line;
return dev->devt == devt; /* Actually, only one tty per port */
}
_
Patches currently in -mm which might be from g.liakhovetski@xxxxxx are
linux-next.patch
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