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Re: [PATCH v2 4/4] wifi: ath12k: Fix uninitialized variable access in ath12k_mac_allocate() function

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On 12/16/2024 7:59 PM, Karthikeyan Periyasamy wrote:
> Currently, the uninitialized variable 'ab' is accessed in the
> ath12k_mac_allocate() function. Initialize 'ab' with the first radio device
> present in the hardware abstraction handle (ah). Additionally, move the
> default setting procedure from the pdev mapping iteration to the total
> radio calculating iteration for better code readability. Perform the
> maximum radio validation check for total_radio to ensure that both num_hw
> and radio_per_hw are validated indirectly, as these variables are derived
> from total_radio. This also fixes the below Smatch static checker warning.
> 
> Smatch warning:
> ath12k_mac_allocate() error: uninitialized symbol 'ab'
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
> 
> Fixes: a343d97f27f5 ("wifi: ath12k: move struct ath12k_hw from per device to group")
> Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@xxxxxxxxxxx>

Acked-by: Jeff Johnson <jeff.johnson@xxxxxxxxxxxxxxxx>





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