3.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> commit 483c319188c74e82b29a0ed7a7fa7065570f2193 upstream. Commit cddb339badb0 (spi/pxa2xx: convert to dma_request_slave_channel_compat()) converted the driver to use ACPI provided DMA helpers but it forgot to initialize the platform data for the channels to -1. Failing to do so will result inadvertent match in the filter function because 0 is a valid channel number. Prevent this from happening by initializing both platform data channels correctly to -1. Fixes: cddb339badb0 (spi/pxa2xx: convert to dma_request_slave_channel_compat()) Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/spi/spi-pxa2xx.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1070,6 +1070,8 @@ pxa2xx_spi_acpi_get_pdata(struct platfor pdata->num_chipselect = 1; pdata->enable_dma = true; + pdata->tx_chan_id = -1; + pdata->rx_chan_id = -1; return pdata; } -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html