From: Javier Martinez Canillas <[email protected]> 3.12-stable review patch. If anyone has any objections, please let me know.
=============== commit abe81f3b8ed2996e1712d26d38ff6b73f582c616 upstream. If the driver is built as a module, autoload won't work because the module alias information is not filled. So user-space can't match the registered device with the corresponding module. Export the module alias information using the MODULE_DEVICE_TABLE() macro. Before this patch: $ modinfo drivers/tty/serial/msm_serial.ko | grep alias $ After this patch: $ modinfo drivers/tty/serial/msm_serial.ko | grep alias alias: of:N*T*Cqcom,msm-uartdmC* alias: of:N*T*Cqcom,msm-uartdm alias: of:N*T*Cqcom,msm-uartC* alias: of:N*T*Cqcom,msm-uart Signed-off-by: Javier Martinez Canillas <[email protected]> Acked-by: Bjorn Andersson <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> Signed-off-by: Jiri Slaby <[email protected]> --- drivers/tty/serial/msm_serial.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c index c0f2b3e5452f..90ed37e45006 100644 --- a/drivers/tty/serial/msm_serial.c +++ b/drivers/tty/serial/msm_serial.c @@ -973,6 +973,7 @@ static struct of_device_id msm_match_table[] = { { .compatible = "qcom,msm-uartdm" }, {} }; +MODULE_DEVICE_TABLE(of, msm_match_table); static struct platform_driver msm_platform_driver = { .remove = msm_serial_remove, -- 2.12.0
