ath5k/phy.c: fix negative array index
ath5k/phy.c: fix negative array index

Author: Adrian Bunk <0b86548ef377da0031a3ff3f0c4e06f016e20105@kernel.org>

This patch fixes a negative array index spotted by the Coverity checker.

Changes-licensed-under: ISC

Acked-by: Nick Kossifidis <bd5bb29faf6bf0846d00f1a7315d9bcc5d451bce@gmail.com>
Signed-off-by: Adrian Bunk <0b86548ef377da0031a3ff3f0c4e06f016e20105@kernel.org>
Signed-off-by: Luis R. Rodriguez <d4fa18192c5a479e564d29c2300c2e15afd1d8d7@winlab.rutgers.edu>
Signed-off-by: John W. Linville <2a53bac7a5d324865ef46ec4c38b2c0fba1456b4@tuxdriver.com>

KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs