3.8-stable review patch. If anyone has any objections, please let me know. ------------------ From: Guennadi Liakhovetski <g.liakhovetski@xxxxxx> commit 7c1119bdd650fa58dad8157bc75c5fcf6ed97843 upstream. If dmaengine driver's .device_alloc_chan_resources() method returns -ENODEV, dma_request_channel() will decide, that the driver has been removed and will remove the device from its list. To prevent this use ENXIO if a slave lookup fails. Reported-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@xxxxxx> Signed-off-by: Vinod Koul <vinod.koul@xxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/dma/sh/shdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/dma/sh/shdma.c +++ b/drivers/dma/sh/shdma.c @@ -326,7 +326,7 @@ static int sh_dmae_set_slave(struct shdm shdma_chan); const struct sh_dmae_slave_config *cfg = dmae_find_slave(sh_chan, slave_id); if (!cfg) - return -ENODEV; + return -ENXIO; if (!try) sh_chan->config = cfg; -- 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