drm: remove redundant code form drm_ioc32.c

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The compat ioctl handler ends up calling access_ok() twice: first
indirectly inside compat_alloc_user_space() and then after returning
from that function. This patch fixes issue.

v2: there were three invalid removals of access_ok() that I've fixed.
Also went through all the changes couple of times and verified that
access_ok() is only removed when the buffer is allocated with
compat_alloc_user_space(). My deepest apologies for this kind of
sloppiness!

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Jarkko Sakkinen 2015-07-03 14:17:29 +03:00 • committed by Daniel Vetter

parent e4f31ad2b7

commit 1f96beec7a

1 changed files with 26 additions and 29 deletions

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55

drivers/gpu/drm/drm_ioc32.c

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