It is not safe to assign the of_node to a device without driver. The
device is matched against a list of drivers and the of_node could lead
to a DT match with the parent driver.
Signed-off-by: Markus Pargmann <mpa@xxxxxxxxxxxxxx>
---
drivers/usb/musb/musb_core.c | 12 +++++++++++-
drivers/usb/musb/musb_dsps.c | 1 -
2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 8b7d903..d5ad9db 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1966,6 +1966,7 @@ static int musb_probe(struct platform_device *pdev)
int irq = platform_get_irq_byname(pdev, "mc");
struct resource *iomem;
void __iomem *base;
+ int ret;
iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!iomem || irq <= 0)
@@ -1975,7 +1976,16 @@ static int musb_probe(struct platform_device *pdev)
if (IS_ERR(base))
return PTR_ERR(base);
- return musb_init_controller(dev, irq, base);
+ if (dev->parent)
+ dev->of_node = dev->parent->of_node;
+
+ ret = musb_init_controller(dev, irq, base);
+ if (ret) {
+ dev->of_node = NULL;
+ return ret;
+ }
+
+ return 0;
}
static int musb_remove(struct platform_device *pdev)
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 82e1da0..7b36d32 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -485,7 +485,6 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue,
musb->dev.parent = dev;
musb->dev.dma_mask = &musb_dmamask;
musb->dev.coherent_dma_mask = musb_dmamask;
- musb->dev.of_node = of_node_get(dn);
glue->musb = musb;
--
1.8.4.2
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