tree 5fe0d6f6b165d867bb76c296c0afbb5b22c52f47
parent 0c744ea4f77d72b3dcebb7a8f2684633ec79be88
author Dave Martin <Dave.Martin@arm.com> 1483725291 +0000
committer Chris Metcalf <cmetcalf@mellanox.com> 1483733648 -0500

tile/ptrace: Preserve previous registers for short regset write

Ensure that if userspace supplies insufficient data to
PTRACE_SETREGSET to fill all the registers, the thread's old
registers are preserved.

Cc: stable@vger.kernel.org
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>