[PATCH] wifi: ath12k: Fix uninitialized use of ret in ath12k_mac_allocate()

[Jeff Johnson]

On 2/5/2024 11:49 AM, Nathan Chancellor wrote:
> Clang warns (or errors with CONFIG_WERROR=y):
> 
>   drivers/net/wireless/ath/ath12k/mac.c:8060:9: error: variable 'ret' is uninitialized when used here [-Werror,-Wuninitialized]
>    8060 |         return ret;
>         |                ^~~
>   drivers/net/wireless/ath/ath12k/mac.c:8022:9: note: initialize the variable 'ret' to silence this warning
>    8022 |         int ret, i, j;
>         |                ^
>         |                 = 0
>   1 error generated.
> 
> Commit 6db6e70a17f6 ("wifi: ath12k: Introduce the container for mac80211
> hw") added a completely uninitialized use of ret. Prior to that change,
> -ENOMEM was returned to the callers of ath12k_mac_allocate() whenever
> ath12k_mac_hw_allocate() failed. Assign that value to ret to make sure
> it is always initialized when used and clear up the warning.
> 
> Closes: https://github.com/ClangBuiltLinux/linux/issues/1989i
> Fixes: 6db6e70a17f6 ("wifi: ath12k: Introduce the container for mac80211 hw")
> Signed-off-by: Nathan Chancellor <nathan at kernel.org>
Acked-by: Jeff Johnson <quic_jjohnson at quicinc.com>