From: Michal Simek <michal.simek@xxxxxxxxxx>
commit 2e01911b7cf7aa07a304a809eca1b11a4bd35859 upstream.
This reverts commit 5e9bd2d70ae7c00a95a22994abf1eef728649e64.
As Johan says, this driver needs a lot more work and these changes are
only going in the wrong direction:
https://lkml.kernel.org/r/20190523091839.GC568@localhost
Reported-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/310999ab5342f788a7bc1b0e68294d4f052cad07.1585905873.git.michal.simek@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/tty/serial/xilinx_uartps.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1550,6 +1550,7 @@ static int cdns_uart_probe(struct platfo
goto err_out_id;
}
+ uartps_major = cdns_uart_uart_driver->tty_driver->major;
cdns_uart_data->cdns_uart_driver = cdns_uart_uart_driver;
/*
@@ -1679,7 +1680,6 @@ static int cdns_uart_probe(struct platfo
console_port = NULL;
#endif
- uartps_major = cdns_uart_uart_driver->tty_driver->major;
cdns_uart_data->cts_override = of_property_read_bool(pdev->dev.of_node,
"cts-override");
return 0;
@@ -1741,12 +1741,6 @@ static int cdns_uart_remove(struct platf
console_port = NULL;
#endif
- /* If this is last instance major number should be initialized */
- mutex_lock(&bitmap_lock);
- if (bitmap_empty(bitmap, MAX_UART_INSTANCES))
- uartps_major = 0;
- mutex_unlock(&bitmap_lock);
-
uart_unregister_driver(cdns_uart_data->cdns_uart_driver);
return rc;
}
