| Date | Thu, 07 Jul 2011 17:16:17 -0700 | From | Greg KH <> | Subject | [045/107] ath5k: fix memory leak when fewer than N_PD_CURVES are in use |
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2.6.39-stable review patch. If anyone has any objections, please let us know.
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From: "Eugene A. Shatokhin" <dame_eugene@mail.ru>
commit a0b8de350be458b33248e48b2174d9af8a4c4798 upstream.
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.
Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/net/wireless/ath/ath5k/eeprom.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-)
--- a/drivers/net/wireless/ath/ath5k/eeprom.c +++ b/drivers/net/wireless/ath/ath5k/eeprom.c @@ -1565,14 +1565,12 @@ ath5k_eeprom_free_pcal_info(struct ath5k 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);
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