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usb: musb-new: sunxi: Fix null pointer access

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When the device is in peripheral mode there is no
struct usb_bus_priv allocated pointer, as the uclass driver
("usb_dev_generic") doesn't call per_device_auto_alloc_size.

This results in writing to the internal SDRAM at
	priv->desc_before_addr = true;

Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
This commit is contained in:
Stefan Mavrodiev 2018-12-05 14:49:44 +02:00 • committed by Marek Vasut
parent 771e76515e
commit 46a3f27654
1 changed files with 6 additions and 2 deletions
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8
drivers/usb/musb-new/sunxi.c
View file

@ -435,11 +435,14 @@ static int musb_usb_probe(struct udevice *dev)
{ {
struct sunxi_glue *glue = dev_get_priv(dev); struct sunxi_glue *glue = dev_get_priv(dev);
struct musb_host_data *host = &glue->mdata; struct musb_host_data *host = &glue->mdata;
struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
struct musb_hdrc_platform_data pdata; struct musb_hdrc_platform_data pdata;
void *base = dev_read_addr_ptr(dev); void *base = dev_read_addr_ptr(dev);
int ret; int ret;
#ifdef CONFIG_USB_MUSB_HOST
struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
#endif
if (!base) if (!base)
return -EINVAL; return -EINVAL;
@ -459,7 +462,6 @@ static int musb_usb_probe(struct udevice *dev)
return ret; return ret;
} }
priv->desc_before_addr = true;
memset(&pdata, 0, sizeof(pdata)); memset(&pdata, 0, sizeof(pdata));
pdata.power = 250; pdata.power = 250;
@ -467,6 +469,8 @@ static int musb_usb_probe(struct udevice *dev)
pdata.config = glue->cfg->config; pdata.config = glue->cfg->config;
#ifdef CONFIG_USB_MUSB_HOST #ifdef CONFIG_USB_MUSB_HOST
priv->desc_before_addr = true;
pdata.mode = MUSB_HOST; pdata.mode = MUSB_HOST;
host->host = musb_init_controller(&pdata, &glue->dev, base); host->host = musb_init_controller(&pdata, &glue->dev, base);
if (!host->host) if (!host->host)