sh: prevent the DMA driver from unloading, while in use

This prevents the driver from unloading, while it is in use. Unloading of the
driver, while its DMA channels are held, leads to a kernel Oops.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index a1727522343e914ee63a5bf064ede9544374abdc..427d514796dd28d8547c48e3ffe15ca16247fcef 100644 (file)
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -1188,6 +1188,7 @@ static struct platform_driver sh_dmae_driver = {
        .remove         = __exit_p(sh_dmae_remove),
        .shutdown       = sh_dmae_shutdown,
        .driver = {
+               .owner  = THIS_MODULE,
                .name   = "sh-dma-engine",
        },
 };