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    Subject[PATCH 5/5] i915:get_engines(): get rid of pointless access_ok()
    Date
    From: Al Viro <viro@zeniv.linux.org.uk>

    Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
    ---
    drivers/gpu/drm/i915/gem/i915_gem_context.c | 5 -----
    1 file changed, 5 deletions(-)

    diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
    index 68326ad3b2e0..55cb6dbfe61f 100644
    --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
    +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
    @@ -1924,11 +1924,6 @@ get_engines(struct i915_gem_context *ctx,
    }

    user = u64_to_user_ptr(args->value);
    - if (!access_ok(user, size)) {
    - err = -EFAULT;
    - goto err_free;
    - }
    -
    if (put_user(0, &user->extensions)) {
    err = -EFAULT;
    goto err_free;
    --
    2.11.0
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