diff options
| -rw-r--r-- | sound/usb/quirks.c | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 9590c16501ef..eed155f12a1f 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -595,7 +595,7 @@ int snd_usb_create_quirk(struct snd_usb_audio *chip, static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf) { struct usb_host_config *config = dev->actconfig; - struct usb_device_descriptor new_device_descriptor; + struct usb_device_descriptor *new_device_descriptor = NULL; int err; if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD || @@ -606,15 +606,20 @@ static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interfac 0x10, 0x43, 0x0001, 0x000a, NULL, 0); if (err < 0) dev_dbg(&dev->dev, "error sending boot message: %d\n", err); + + new_device_descriptor = kmalloc(sizeof(*new_device_descriptor), GFP_KERNEL); + if (!new_device_descriptor) + return -ENOMEM; err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, - &new_device_descriptor, sizeof(new_device_descriptor)); + new_device_descriptor, sizeof(*new_device_descriptor)); if (err < 0) dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err); - if (new_device_descriptor.bNumConfigurations > dev->descriptor.bNumConfigurations) + if (new_device_descriptor->bNumConfigurations > dev->descriptor.bNumConfigurations) dev_dbg(&dev->dev, "error too large bNumConfigurations: %d\n", - new_device_descriptor.bNumConfigurations); + new_device_descriptor->bNumConfigurations); else - memcpy(&dev->descriptor, &new_device_descriptor, sizeof(dev->descriptor)); + memcpy(&dev->descriptor, new_device_descriptor, sizeof(dev->descriptor)); + kfree(new_device_descriptor); err = usb_reset_configuration(dev); if (err < 0) dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err); @@ -946,7 +951,7 @@ static void mbox2_setup_48_24_magic(struct usb_device *dev) static int snd_usb_mbox2_boot_quirk(struct usb_device *dev) { struct usb_host_config *config = dev->actconfig; - struct usb_device_descriptor new_device_descriptor; + struct usb_device_descriptor *new_device_descriptor = NULL; int err; u8 bootresponse[0x12]; int fwsize; @@ -981,15 +986,21 @@ static int snd_usb_mbox2_boot_quirk(struct usb_device *dev) dev_dbg(&dev->dev, "device initialised!\n"); + new_device_descriptor = kmalloc(sizeof(*new_device_descriptor), GFP_KERNEL); + if (!new_device_descriptor) + return -ENOMEM; + err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, - &new_device_descriptor, sizeof(new_device_descriptor)); + new_device_descriptor, sizeof(*new_device_descriptor)); if (err < 0) dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err); - if (new_device_descriptor.bNumConfigurations > dev->descriptor.bNumConfigurations) + if (new_device_descriptor->bNumConfigurations > dev->descriptor.bNumConfigurations) dev_dbg(&dev->dev, "error too large bNumConfigurations: %d\n", - new_device_descriptor.bNumConfigurations); + new_device_descriptor->bNumConfigurations); else - memcpy(&dev->descriptor, &new_device_descriptor, sizeof(dev->descriptor)); + memcpy(&dev->descriptor, new_device_descriptor, sizeof(dev->descriptor)); + + kfree(new_device_descriptor); err = usb_reset_configuration(dev); if (err < 0) |