Thread (3 messages) 3 messages, 3 authors, 2021-06-15
STALE1854d LANDED

[PATCH -next] brcmfmac: Fix a double-free in brcmf_sdio_bus_reset

From: Tong Tiangen <hidden>
Date: 2021-06-01 09:52:33
Also in: lkml, netdev
Subsystem: broadcom brcm80211 ieee802.11 wireless drivers, the rest · Maintainers: Arend van Spriel, Linus Torvalds

brcmf_sdiod_remove has been called inside brcmf_sdiod_probe when fails,
so there's no need to call another one. Otherwise, sdiodev->freezer
would be double freed.

Fixes: 7836102a750a ("brcmfmac: reset SDIO bus on a firmware crash")
Signed-off-by: Tong Tiangen <redacted>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 1 -
 1 file changed, 1 deletion(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 16ed325795a8..3a1c98a046f0 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -4162,7 +4162,6 @@ static int brcmf_sdio_bus_reset(struct device *dev)
 	if (ret) {
 		brcmf_err("Failed to probe after sdio device reset: ret %d\n",
 			  ret);
-		brcmf_sdiod_remove(sdiodev);
 	}
 
 	return ret;
-- 
2.18.0.huawei.25
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