From: Jianglei Nie <niejianglei2021@163.com>
To: aspriel@gmail.com, franky.lin@broadcom.com,
hante.meuleman@broadcom.com, kvalo@kernel.org,
davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com, alsi@bang-olufsen.dk,
rmk+kernel@armlinux.org.uk, linus.walleij@linaro.org,
marcan@marcan.st
Cc: linux-wireless@vger.kernel.org,
brcm80211-dev-list.pdl@broadcom.com,
SHA-cyfmac-dev-list@infineon.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
Jianglei Nie <niejianglei2021@163.com>
Subject: [PATCH] net: brcmfmac: fix potential resource leak in brcmf_usb_probe_phase2()
Date: Sun, 20 Nov 2022 18:38:07 +0800 [thread overview]
Message-ID: <20221120103807.7588-1-niejianglei2021@163.com> (raw)
brcmf_usb_probe_phase2() allocates resource for dev with brcmf_alloc().
The related resource should be released when the function gets some error.
But when brcmf_attach() fails, relevant resource is not released, which
will lead to resource leak.
Fix it by calling brcmf_free() when brcmf_attach() fails.
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
index 85e18fb9c497..5d8c12b2c4d7 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
@@ -1215,6 +1215,7 @@ static void brcmf_usb_probe_phase2(struct device *dev, int ret,
return;
error:
brcmf_dbg(TRACE, "failed: dev=%s, err=%d\n", dev_name(dev), ret);
+ brcmf_free(devinfo->dev);
complete(&devinfo->dev_init_done);
device_release_driver(dev);
}
--
2.25.1
next reply other threads:[~2022-11-20 10:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-20 10:38 Jianglei Nie [this message]
2022-12-22 16:01 ` [PATCH] net: brcmfmac: fix potential resource leak in brcmf_usb_probe_phase2() Kalle Valo
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