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| author | Al Viro <viro@zeniv.linux.org.uk> | 2017-05-25 19:53:59 +0300 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-05-27 22:39:36 +0300 |
| commit | 9e0756800fa2cd6f10116cd0d8b77bb41522370a (patch) | |
| tree | f611a96e2a1075bce03e5b4432c420c9cf16dc69 | |
| parent | d7631e30434e7fcf025dd2a7cba879f203f7849b (diff) | |
| download | linux-9e0756800fa2cd6f10116cd0d8b77bb41522370a.tar.xz | |
switch compat_drm_resctx() to drm_ioctl_kernel()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | drivers/gpu/drm/drm_ioc32.c | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c index 2f017e368d5f..70cfb85b4385 100644 --- a/drivers/gpu/drm/drm_ioc32.c +++ b/drivers/gpu/drm/drm_ioc32.c @@ -547,26 +547,20 @@ static int compat_drm_resctx(struct file *file, unsigned int cmd, { drm_ctx_res32_t __user *argp = (void __user *)arg; drm_ctx_res32_t res32; - struct drm_ctx_res __user *res; + struct drm_ctx_res res; int err; if (copy_from_user(&res32, argp, sizeof(res32))) return -EFAULT; - res = compat_alloc_user_space(sizeof(*res)); - if (!res) - return -EFAULT; - if (__put_user(res32.count, &res->count) - || __put_user((struct drm_ctx __user *) (unsigned long)res32.contexts, - &res->contexts)) - return -EFAULT; - - err = drm_ioctl(file, DRM_IOCTL_RES_CTX, (unsigned long)res); + res.count = res32.count; + res.contexts = compat_ptr(res32.contexts); + err = drm_ioctl_kernel(file, drm_legacy_resctx, &res, DRM_AUTH); if (err) return err; - if (__get_user(res32.count, &res->count) - || __put_user(res32.count, &argp->count)) + res32.count = res.count; + if (copy_to_user(argp, &res32, sizeof(res32))) return -EFAULT; return 0; @@ -1001,7 +995,7 @@ static struct { [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)].fn = compat_drm_rmmap, DRM_IOCTL32_DEF(DRM_IOCTL_SET_SAREA_CTX, compat_drm_setsareactx), DRM_IOCTL32_DEF(DRM_IOCTL_GET_SAREA_CTX, compat_drm_getsareactx), - [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX32)].fn = compat_drm_resctx, + DRM_IOCTL32_DEF(DRM_IOCTL_RES_CTX, compat_drm_resctx), [DRM_IOCTL_NR(DRM_IOCTL_DMA32)].fn = compat_drm_dma, #if IS_ENABLED(CONFIG_AGP) [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE32)].fn = compat_drm_agp_enable, |