linux-kernel - [PATCH v3] misc/pvpanic: fix set driver data

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Message-Id: <1629385946-4584-1-git-send-email-mihai.carabas@oracle.com>
Date:   Thu, 19 Aug 2021 18:12:25 +0300
From:   Mihai Carabas <mihai.carabas@...cle.com>
To:     arnd@...db.de, gregkh@...uxfoundation.org,
        andriy.shevchenko@...ux.intel.com, christophe.jaillet@...adoo.fr,
        mihai.carabas@...cle.com, linux-kernel@...r.kernel.org
Subject: [PATCH v3] misc/pvpanic: fix set driver data

Commit 394febc9d0a6 ("misc/pvpanic: Make 'pvpanic_probe()' resource managed")
removed dev_set_drvdata() from the probe function and accessing sysfs entries
from userspace is causing a panic in the kernel (pi = dev_get_drvdata(dev) ->
pi is NULL).

v2:
- fixes a compile issue with CONFIG_PVPANIC_PCI
- move dev_set_drvdata() to devm_pvpanic_probe()

v3:
- move dev_set_drvdata() at the end of devm_pvpanic_probe()

Mihai Carabas (1):
  misc/pvpanic: fix set driver data

 drivers/misc/pvpanic/pvpanic.c | 2 ++
 1 file changed, 2 insertions(+)

-- 
1.8.3.1