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ath5k: fix memory leak when fewer than N_PD_CURVES are in use

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We would free the proper number of curves, but in the wrong
slots, due to a missing level of indirection through
the pdgain_idx table.

It's simpler just to try to free all four slots, so do that.

Cc: stable@kernel.org
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Eugene A. Shatokhin 2011-06-28 23:04:51 -04:00 committed by John W. Linville
parent c31eb8e926
commit a0b8de350b
1 changed files with 3 additions and 5 deletions
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8
drivers/net/wireless/ath/ath5k/eeprom.c
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@ -691,14 +691,12 @@ ath5k_eeprom_free_pcal_info(struct ath5k_hw *ah, int mode)
if (!chinfo[pier].pd_curves)
continue;
for (pdg = 0; pdg < ee->ee_pd_gains[mode]; pdg++) {
for (pdg = 0; pdg < AR5K_EEPROM_N_PD_CURVES; pdg++) {
struct ath5k_pdgain_info *pd =
&chinfo[pier].pd_curves[pdg];
if (pd != NULL) {
kfree(pd->pd_step);
kfree(pd->pd_pwr);
}
kfree(pd->pd_step);
kfree(pd->pd_pwr);
}
kfree(chinfo[pier].pd_curves);