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drm/vmwgfx: Use memdup_user() rather than duplicating its implementation
authorMarkus Elfring <elfring@users.sourceforge.net>
Fri, 23 Sep 2016 15:26:02 +0000 (17:26 +0200)
committerSinclair Yeh <syeh@vmware.com>
Mon, 10 Oct 2016 18:46:53 +0000 (11:46 -0700)
commitc138d03f1bf3b9c7bfd449e890cc003658b5c45a
tree702914fca2f7ea8d5dc80c7f33042a807fc64283tree | snapshot
parent7ed3b3943281e9da32b52e2aac77bdb2c42c5117commit | diff
drm/vmwgfx: Use memdup_user() rather than duplicating its implementation

* Reuse existing functionality from memdup_user() instead of keeping
  duplicate source code.

* Try this copy operation before allocating memory for the data structure
  member "offsets".

* Delete the local variable "user_sizes" which became unnecessary
  with this refactoring.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
drivers/gpu/drm/vmwgfx/vmwgfx_surface.c diff | blob | history
Domain: System / Kernel;