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brcmsmac: fix memory leak in wlc_phy_attach_lcnphy 

When wlc_phy_txpwr_srom_read_lcnphy fails in wlc_phy_attach_lcnphy,
the allocated pi->u.pi_lcnphy is leaked, since struct brcms_phy will be
freed in the caller function.

Fix this by calling wlc_phy_detach_lcnphy in the error handler of
wlc_phy_txpwr_srom_read_lcnphy before returning.

Signed-off-by: Keita Suzuki <keitasuzuki.park@sslab.ics.keio.ac.jp>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200908121743.23108-1-keitasuzuki.park@sslab.ics.keio.ac.jp
This commit is contained in:
Keita Suzuki 2020-09-08 12:17:41 +00:00 committed by Kalle Valo
parent eb2c6ca2db
commit f4443293d7
1 changed files with 3 additions and 1 deletions
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4
drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_lcn.c
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@ -5047,8 +5047,10 @@ bool wlc_phy_attach_lcnphy(struct brcms_phy *pi)
pi->pi_fptr.radioloftget = wlc_lcnphy_get_radio_loft;
pi->pi_fptr.detach = wlc_phy_detach_lcnphy;
if (!wlc_phy_txpwr_srom_read_lcnphy(pi))
if (!wlc_phy_txpwr_srom_read_lcnphy(pi)) {
kfree(pi->u.pi_lcnphy);
return false;
}
if (LCNREV_IS(pi->pubpi.phy_rev, 1)) {
if (pi_lcn->lcnphy_tempsense_option == 3) {