3.3-stable review patch. If anyone has any objections, please let me know.
------------------ From: "Cousson, Benoit" <[email protected]> commit a5f43138da9beddc46b00ec31d167143a7176683 upstream. The following commit: be4b0281956c5cae4f63f31f11d07625a6988766 (tty: serial: OMAP: block idle while the UART is transferring data in PIO mode), is introducing an oops if OMAP is booted using device tree blob because the pdata will not be initialized. Check if pdata is set before de-referencing it. Signed-off-by: Benoit Cousson <[email protected]> Reviewed-by: Paul Walmsley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/tty/serial/omap-serial.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -159,7 +159,7 @@ static void serial_omap_stop_tx(struct u serial_out(up, UART_IER, up->ier); } - if (!up->use_dma && pdata->set_forceidle) + if (!up->use_dma && pdata && pdata->set_forceidle) pdata->set_forceidle(up->pdev); pm_runtime_mark_last_busy(&up->pdev->dev); @@ -298,7 +298,7 @@ static void serial_omap_start_tx(struct if (!up->use_dma) { pm_runtime_get_sync(&up->pdev->dev); serial_omap_enable_ier_thri(up); - if (pdata->set_noidle) + if (pdata && pdata->set_noidle) pdata->set_noidle(up->pdev); pm_runtime_mark_last_busy(&up->pdev->dev); pm_runtime_put_autosuspend(&up->pdev->dev); @@ -1613,7 +1613,7 @@ static int serial_omap_runtime_resume(st struct uart_omap_port *up = dev_get_drvdata(dev); struct omap_uart_port_info *pdata = dev->platform_data; - if (up) { + if (up && pdata) { if (pdata->get_context_loss_count) { u32 loss_cnt = pdata->get_context_loss_count(dev); -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
