Commit 8d2421e ("usb: musb: kill global and static for multi instance")
removed the global dma_mask copy and replaced by parent's DMA mask. The
problem here is that if the parent does not have a dma_mask then
musb_remove() goes kaboom.
Instead trying to fix this I was thinking we do we need to erase
dma_mask in the first place?
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
drivers/usb/musb/musb_core.c | 7 -------
1 file changed, 7 deletions(-)
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 9b774e7..80ffd7e 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1843,10 +1843,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
if (use_dma && dev->dma_mask)
musb->dma_controller = dma_controller_create(musb, musb->mregs);
- /* ideally this would be abstracted in platform setup */
- if (!musb->dma_controller)
- dev->dma_mask = NULL;
-
/* be sure interrupts are disabled before connecting ISR */
musb_platform_disable(musb);
musb_generic_disable(musb);
@@ -1993,9 +1989,6 @@ static int musb_remove(struct platform_device *pdev)
musb_free(musb);
device_init_wakeup(dev, 0);
-#ifndef CONFIG_MUSB_PIO_ONLY
- dma_set_mask(dev, *dev->parent->dma_mask);
-#endif
return 0;
}
--
1.8.3.2
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