xiaomi-sm8450/android_kernel_xiaomi_sm8450
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switch simple cases of fget_light to fdget

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2012-08-28 12:52:22 -04:00
parent a5b470ba06
commit 2903ff019b
44 changed files with 631 additions and 761 deletions
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17
drivers/vfio/vfio.c
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@@ -1014,25 +1014,25 @@ static void vfio_group_try_dissolve_container(struct vfio_group *group)
static int vfio_group_set_container(struct vfio_group *group, int container_fd)
{
struct file *filep;
struct fd f;
struct vfio_container *container;
struct vfio_iommu_driver *driver;
int ret = 0, fput_needed;
int ret = 0;
if (atomic_read(&group->container_users))
return -EINVAL;
filep = fget_light(container_fd, &fput_needed);
if (!filep)
f = fdget(container_fd);
if (!f.file)
return -EBADF;
/* Sanity check, is this really our fd? */
if (filep->f_op != &vfio_fops) {
fput_light(filep, fput_needed);
if (f.file->f_op != &vfio_fops) {
fdput(f);
return -EINVAL;
}
container = filep->private_data;
container = f.file->private_data;
WARN_ON(!container); /* fget ensures we don't race vfio_release */
mutex_lock(&container->group_lock);
@@ -1054,8 +1054,7 @@ static int vfio_group_set_container(struct vfio_group *group, int container_fd)
unlock_out:
mutex_unlock(&container->group_lock);
fput_light(filep, fput_needed);
fdput(f);
return ret;
}