tree a7234d01a8647f98e644e89a3b2675b2de4e1c30
parent a0e27f51ba8a04125c22a95c4d3e98297a7191de
author Grant Likely <grant.likely@linaro.org> 1416414152 +0000
committer Grant Likely <grant.likely@linaro.org> 1416418977 +0000

of/selftest: Fix off-by-one error in removal path

The removal path for selftest data has an off by one error that causes
the code to dereference beyond the end of the nodes[] array on the first
pass through. The old code only worked by chance on a lot of platforms,
but the bug was recently exposed on aarch64.

The fix is simple. Decrement the node count before dereferencing, not
after.

Reported-by: Kevin Hilman <khilman@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Gaurav Minocha <gaurav.minocha.os@gmail.com>
Cc: <stable@vger.kernel.org> # v3.17+