From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Malcolm Priestley <tvboxspy@gmail.com>
Subject: [PATCH 4.9 16/31] staging: vt6656: set usb_set_intfdata on driver fail.
Date: Tue, 14 Jan 2020 11:02:08 +0100 [thread overview]
Message-ID: <20200114094342.914869599@linuxfoundation.org> (raw)
In-Reply-To: <20200114094334.725604663@linuxfoundation.org>
From: Malcolm Priestley <tvboxspy@gmail.com>
commit c0bcf9f3f5b661d4ace2a64a79ef661edd2a4dc8 upstream.
intfdata will contain stale pointer when the device is detached after
failed initialization when referenced in vt6656_disconnect
Provide driver access to it here and NULL it.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/6de448d7-d833-ef2e-dd7b-3ef9992fee0e@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/staging/vt6656/device.h | 1 +
drivers/staging/vt6656/main_usb.c | 1 +
drivers/staging/vt6656/wcmd.c | 1 +
3 files changed, 3 insertions(+)
--- a/drivers/staging/vt6656/device.h
+++ b/drivers/staging/vt6656/device.h
@@ -269,6 +269,7 @@ struct vnt_private {
u8 mac_hw;
/* netdev */
struct usb_device *usb;
+ struct usb_interface *intf;
u64 tsf_time;
u8 rx_rate;
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -972,6 +972,7 @@ vt6656_probe(struct usb_interface *intf,
priv = hw->priv;
priv->hw = hw;
priv->usb = udev;
+ priv->intf = intf;
vnt_set_options(priv);
--- a/drivers/staging/vt6656/wcmd.c
+++ b/drivers/staging/vt6656/wcmd.c
@@ -110,6 +110,7 @@ void vnt_run_command(struct work_struct
if (vnt_init(priv)) {
/* If fail all ends TODO retry */
dev_err(&priv->usb->dev, "failed to start\n");
+ usb_set_intfdata(priv->intf, NULL);
ieee80211_free_hw(priv->hw);
return;
}
next prev parent reply other threads:[~2020-01-14 10:15 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-14 10:01 [PATCH 4.9 00/31] 4.9.210-stable review Greg Kroah-Hartman
2020-01-14 10:01 ` [PATCH 4.9 01/31] kobject: Export kobject_get_unless_zero() Greg Kroah-Hartman
2020-01-14 10:01 ` [PATCH 4.9 02/31] chardev: Avoid potential use-after-free in chrdev_open() Greg Kroah-Hartman
2020-01-14 10:01 ` [PATCH 4.9 03/31] usb: chipidea: host: Disable port power only if previously enabled Greg Kroah-Hartman
2020-01-14 10:01 ` [PATCH 4.9 04/31] ALSA: usb-audio: Apply the sample rate quirk for Bose Companion 5 Greg Kroah-Hartman
2020-01-14 10:01 ` [PATCH 4.9 05/31] tcp: minimize false-positives on TCP/GRO check Greg Kroah-Hartman
2020-01-14 10:01 ` [PATCH 4.9 06/31] kernel/trace: Fix do not unregister tracepoints when register sched_migrate_task fail Greg Kroah-Hartman
2020-01-14 10:01 ` [PATCH 4.9 07/31] tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 08/31] HID: Fix slab-out-of-bounds read in hid_field_extract Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 09/31] HID: uhid: Fix returning EPOLLOUT from uhid_char_poll Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 10/31] HID: hid-input: clear unmapped usages Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 11/31] Input: add safety guards to input_set_keycode() Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 12/31] drm/dp_mst: correct the shifting in DP_REMOTE_I2C_READ Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 13/31] can: gs_usb: gs_usb_probe(): use descriptors of current altsetting Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 14/31] can: mscan: mscan_rx_poll(): fix rx path lockup when returning from polling to irq mode Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 15/31] can: can_dropped_invalid_skb(): ensure an initialized headroom in outgoing CAN sk_buffs Greg Kroah-Hartman
2020-01-14 10:02 ` Greg Kroah-Hartman [this message]
2020-01-14 10:02 ` [PATCH 4.9 17/31] USB: serial: option: add ZLP support for 0x1bc7/0x9010 Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 18/31] usb: musb: fix idling for suspend after disconnect interrupt Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 19/31] usb: musb: Disable pullup at init Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 20/31] usb: musb: dma: Correct parameter passed to IRQ handler Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 21/31] staging: comedi: adv_pci1710: fix AI channels 16-31 for PCI-1713 Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 22/31] staging: rtl8188eu: Add device code for TP-Link TL-WN727N v5.21 Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 23/31] tty: link tty and port before configuring it as console Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 24/31] tty: always relink the port Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 25/31] mwifiex: fix possible heap overflow in mwifiex_process_country_ie() Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 26/31] mwifiex: pcie: Fix memory leak in mwifiex_pcie_alloc_cmdrsp_buf Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 27/31] scsi: bfa: release allocated memory in case of error Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 28/31] rtl8xxxu: prevent leaking urb Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 29/31] USB: Fix: Dont skip endpoint descriptors with maxpacket=0 Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 30/31] netfilter: arp_tables: init netns pointer in xt_tgchk_param struct Greg Kroah-Hartman
2020-01-14 10:02 ` [PATCH 4.9 31/31] netfilter: ipset: avoid null deref when IPSET_ATTR_LINENO is present Greg Kroah-Hartman
2020-01-14 15:01 ` [PATCH 4.9 00/31] 4.9.210-stable review Jon Hunter
2020-01-14 18:41 ` Guenter Roeck
2020-01-14 20:32 ` shuah
2020-01-15 2:08 ` Daniel Díaz
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