[CPUFREQ] powernow-k8.c: fix a check-after-use

This patch fixes a check-after-use introduced by commit
4211a30349e8d2b724cfb4ce2584604f5e59c299 and spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Dave Jones <davej@redhat.com>
1 file changed