The variable radioup is not uninitalized so it may contain a garbage
value and hence the detection of a radio that is not up is buggy.
Fix this by initializing it to zero.
Addresses-Coverity: ("Uninitalized scalar variable") Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>