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vfio_platform: Updated to use vfio_set_irqs_validate_and_prepare() 

Updated vfio_platform_common.c file to use
vfio_set_irqs_validate_and_prepare()

Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Neo Jia <cjia@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Kirti Wankhede 2016-11-17 02:16:29 +05:30 committed by Alex Williamson
parent ef198aaa16
commit a1e03e9bcc
1 changed files with 8 additions and 23 deletions
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31
drivers/vfio/platform/vfio_platform_common.c
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@ -364,36 +364,21 @@ static long vfio_platform_ioctl(void *device_data,
struct vfio_irq_set hdr;
u8 *data = NULL;
int ret = 0;
size_t data_size = 0;
minsz = offsetofend(struct vfio_irq_set, count);
if (copy_from_user(&hdr, (void __user *)arg, minsz))
return -EFAULT;
if (hdr.argsz < minsz)
return -EINVAL;
ret = vfio_set_irqs_validate_and_prepare(&hdr, vdev->num_irqs,
vdev->num_irqs, &data_size);
if (ret)
return ret;
if (hdr.index >= vdev->num_irqs)
return -EINVAL;
if (hdr.flags & ~(VFIO_IRQ_SET_DATA_TYPE_MASK |
VFIO_IRQ_SET_ACTION_TYPE_MASK))
return -EINVAL;
if (!(hdr.flags & VFIO_IRQ_SET_DATA_NONE)) {
size_t size;
if (hdr.flags & VFIO_IRQ_SET_DATA_BOOL)
size = sizeof(uint8_t);
else if (hdr.flags & VFIO_IRQ_SET_DATA_EVENTFD)
size = sizeof(int32_t);
else
return -EINVAL;
if (hdr.argsz - minsz < size)
return -EINVAL;
data = memdup_user((void __user *)(arg + minsz), size);
if (data_size) {
data = memdup_user((void __user *)(arg + minsz),
data_size);
if (IS_ERR(data))
return PTR_ERR(data);
}