tree 13c92234f198f0cc9147b65f4d90bcb15018f9e9
parent 6ada1fc0e1c4775de0e043e1bd3ae9d065491aa5
author Sasha Levin <sasha.levin@oracle.com> 1417652705 -0500
committer John Stultz <john.stultz@linaro.org> 1420653032 -0800

time: adjtimex: Validate the ADJ_FREQUENCY values

Verify that the frequency value from userspace is valid and makes sense.

Unverified values can cause overflows later on.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
[jstultz: Fix up bug for negative values and drop redunent cap check]
Signed-off-by: John Stultz <john.stultz@linaro.org>