linux-kernel - [PATCH 0/2] Account for uncorrectable failures in probing

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Message-Id: <cover.1509725778.git.mario.limonciello@dell.com>
Date:   Fri,  3 Nov 2017 11:27:20 -0500
From:   Mario Limonciello <mario.limonciello@...l.com>
To:     dvhart@...radead.org, Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        platform-driver-x86@...r.kernel.org, pali.rohar@...il.com,
        Mario Limonciello <mario.limonciello@...l.com>
Subject: [PATCH 0/2] Account for uncorrectable failures in probing

Pali raised some concerns around corner case scenarios that probing
may fail on dell-wmi-descriptor causing dell-wmi and dell-smbios-wmi
to be stuck in infinite deferred probing loops.

This patch series accounts for that corner case.

Changes since original submission:
- Add as second patch that catches potential NULL pointer
- Avoid potential race condition between driver init and calling
  check for if validation successful
Mario Limonciello (2):
  platform/x86: dell-wmi-descriptor: check if memory was allocated
  platform/x86: dell-*wmi*: Relay failed initial probe to dependent
    drivers

 drivers/platform/x86/dell-smbios-wmi.c     |  4 ++++
 drivers/platform/x86/dell-wmi-descriptor.c | 16 ++++++++++++++++
 drivers/platform/x86/dell-wmi-descriptor.h |  7 +++++++
 drivers/platform/x86/dell-wmi.c            |  5 +++++
 4 files changed, 32 insertions(+)

-- 
2.14.1