drivers/net/wireless/ath/ath5k/phy.c +2603 ath5k_combine_pwr_to_pdadc_curves(66)
2587 /* If pdadc_0 is negative, we need to extrapolate
2588 * below this pdgain by a number of pwr_steps */
2589 while ((pdadc_0 < 0) && (pdadc_i < 128)) {
If pdadc_i ever hits 128 here then that could cause problems on
line 2603.
2590 s16 tmp = pdadc_tmp[0] + pdadc_0 * pwr_step;
2591 pdadc_out[pdadc_i++] = (tmp < 0) ? 0 : (u8) tmp;
2592 pdadc_0++;
2593 }
2594
2595 /* Set last pwr level, using gain boundaries */
2596 pdadc_n = gain_boundaries[pdg] + pd_gain_overlap -
pwr_min[pdg];
2597 /* Limit it to be inside pwr range */
2598 table_size = pwr_max[pdg] - pwr_min[pdg];
2599 max_idx = (pdadc_n < table_size) ? pdadc_n : table_size;
2600
2601 /* Fill pdadc_out table */
2602 while (pdadc_0 < max_idx)
2603 pdadc_out[pdadc_i++] = pdadc_tmp[pdadc_0++];
pdadc_i would be too high and pdadc_0 could maybe still be less
than zero.
regards,
dan carpenter
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