From: Insu Yun <wuninsu@gmail.com>
To: isdn@linux-pingi.de, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: taesoo@gatech.edu, yeongjin.jang@gatech.edu, insu@gatech.edu,
changwoo@gatech.edu, Insu Yun <wuninsu@gmail.com>
Subject: [PATCH] mISDN: correctly handling failed allocation
Date: Tue, 29 Dec 2015 16:38:46 -0500 [thread overview]
Message-ID: <1451425126-26958-1-git-send-email-wuninsu@gmail.com> (raw)
Since kzalloc can be failed in memory pressure,
NULL dereference might be happened.
Signed-off-by: Insu Yun <wuninsu@gmail.com>
---
drivers/isdn/hardware/mISDN/hfcsusb.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/isdn/hardware/mISDN/hfcsusb.c b/drivers/isdn/hardware/mISDN/hfcsusb.c
index 114f3bc..15164e9 100644
--- a/drivers/isdn/hardware/mISDN/hfcsusb.c
+++ b/drivers/isdn/hardware/mISDN/hfcsusb.c
@@ -264,6 +264,9 @@ hfcsusb_ph_info(struct hfcsusb *hw)
phi = kzalloc(sizeof(struct ph_info) +
dch->dev.nrbchan * sizeof(struct ph_info_ch), GFP_ATOMIC);
+ if (!phi)
+ return;
+
phi->dch.ch.protocol = hw->protocol;
phi->dch.ch.Flags = dch->Flags;
phi->dch.state = dch->state;
--
1.9.1
next reply other threads:[~2015-12-29 21:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-29 21:38 Insu Yun [this message]
2016-01-04 22:16 ` David Miller
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