From: Dan Carpenter <dan.carpenter@oracle.com>
To: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>,
Samuel Ortiz <sameo@linux.intel.com>,
Michael Thalmeier <michael.thalmeier@hale.at>,
linux-wireless@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] NFC: pn533: double free on error in probe()
Date: Tue, 17 May 2016 07:32:19 +0000 [thread overview]
Message-ID: <20160517073219.GC10872@mwanda> (raw)
We can't pass devm_ allocated pointers to kfree() because they will be
freed again after the drive is unloaded.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/nfc/pn533/usb.c b/drivers/nfc/pn533/usb.c
index 8ca0603..33ed78b 100644
--- a/drivers/nfc/pn533/usb.c
+++ b/drivers/nfc/pn533/usb.c
@@ -464,10 +464,8 @@ static int pn533_usb_probe(struct usb_interface *interface,
return -ENOMEM;
in_buf = kzalloc(in_buf_len, GFP_KERNEL);
- if (!in_buf) {
- rc = -ENOMEM;
- goto out_free_phy;
- }
+ if (!in_buf)
+ return -ENOMEM;
phy->udev = usb_get_dev(interface_to_usbdev(interface));
phy->interface = interface;
@@ -554,8 +552,7 @@ error:
usb_free_urb(phy->out_urb);
usb_put_dev(phy->udev);
kfree(in_buf);
-out_free_phy:
- kfree(phy);
+
return rc;
}
WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>,
Samuel Ortiz <sameo@linux.intel.com>,
Michael Thalmeier <michael.thalmeier@hale.at>,
linux-wireless@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] NFC: pn533: double free on error in probe()
Date: Tue, 17 May 2016 10:32:19 +0300 [thread overview]
Message-ID: <20160517073219.GC10872@mwanda> (raw)
We can't pass devm_ allocated pointers to kfree() because they will be
freed again after the drive is unloaded.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/nfc/pn533/usb.c b/drivers/nfc/pn533/usb.c
index 8ca0603..33ed78b 100644
--- a/drivers/nfc/pn533/usb.c
+++ b/drivers/nfc/pn533/usb.c
@@ -464,10 +464,8 @@ static int pn533_usb_probe(struct usb_interface *interface,
return -ENOMEM;
in_buf = kzalloc(in_buf_len, GFP_KERNEL);
- if (!in_buf) {
- rc = -ENOMEM;
- goto out_free_phy;
- }
+ if (!in_buf)
+ return -ENOMEM;
phy->udev = usb_get_dev(interface_to_usbdev(interface));
phy->interface = interface;
@@ -554,8 +552,7 @@ error:
usb_free_urb(phy->out_urb);
usb_put_dev(phy->udev);
kfree(in_buf);
-out_free_phy:
- kfree(phy);
+
return rc;
}
next reply other threads:[~2016-05-17 7:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-17 7:32 Dan Carpenter [this message]
2016-05-17 7:32 ` [patch] NFC: pn533: double free on error in probe() Dan Carpenter
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