From: Christian Gromm <christian.gromm@microchip.com>
To: <gregkh@linuxfoundation.org>
Cc: Christian Gromm <christian.gromm@microchip.com>,
driverdev-devel@linuxdriverproject.org
Subject: [PATCH v4 07/10] staging: most: usb: check for NULL device
Date: Thu, 23 Jan 2020 16:38:23 +0100 [thread overview]
Message-ID: <1579793906-5054-8-git-send-email-christian.gromm@microchip.com> (raw)
In-Reply-To: <1579793906-5054-1-git-send-email-christian.gromm@microchip.com>
Check if the dci structer has been allocated before trying to release it.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
---
v3:
This patch has beed added to the series.
v4:
drivers/staging/most/usb/usb.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/most/usb/usb.c b/drivers/staging/most/usb/usb.c
index 3c8ae17..857f916 100644
--- a/drivers/staging/most/usb/usb.c
+++ b/drivers/staging/most/usb/usb.c
@@ -1217,7 +1217,8 @@ static void hdm_disconnect(struct usb_interface *interface)
del_timer_sync(&mdev->link_stat_timer);
cancel_work_sync(&mdev->poll_work_obj);
- device_unregister(&mdev->dci->dev);
+ if (mdev->dci)
+ device_unregister(&mdev->dci->dev);
most_deregister_interface(&mdev->iface);
kfree(mdev->busy_urbs);
--
2.7.4
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next prev parent reply other threads:[~2020-01-23 15:38 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-23 15:38 [PATCH v4 00/10] staging: most: move core module out of staging Christian Gromm
2020-01-23 15:38 ` [PATCH v4 01/10] staging: most: remove device from interface structure Christian Gromm
2020-01-23 18:18 ` Greg KH
2020-01-24 8:56 ` Christian.Gromm
2020-01-24 9:09 ` Greg KH
2020-02-06 9:14 ` Christian.Gromm
2020-02-14 16:17 ` Greg KH
2020-03-23 14:16 ` Christian.Gromm
2020-01-23 15:38 ` [PATCH v4 02/10] staging: most: core: drop device reference Christian Gromm
2020-01-23 15:38 ` [PATCH v4 03/10] staging: most: remove struct device core driver Christian Gromm
2020-01-23 15:38 ` [PATCH v4 04/10] staging: most: core: remove container struct Christian Gromm
2020-01-23 15:38 ` [PATCH v4 05/10] staging: most: core: fix logging messages Christian Gromm
2020-01-23 15:38 ` [PATCH v4 06/10] staging: next: configfs: fix release link Christian Gromm
2020-01-23 15:38 ` Christian Gromm [this message]
2020-01-23 15:38 ` [PATCH v4 08/10] staging: most: move core files out of the staging area Christian Gromm
2020-01-23 15:38 ` [PATCH v4 09/10] staging: most: Documentation: update ABI description Christian Gromm
2020-01-23 15:38 ` [PATCH v4 10/10] staging: most: Documentation: move ABI description files out of staging area Christian Gromm
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