This patch series primarily deals with a potential UAF inside
the dell-smbios-wmi driver reported by a user. The first patch
fixes this issue, with the remaining two patches further
cleaning up the resource management.

All patches have been tested on a Dell Inspiron 3505 and appear
to work. I also verified that the UAF issue does not occur anymore
after applying the first patch.

Changes since v1:
- move the rw semaphore next to wmi_list and add a comment

Armin Wolf (3):
  platform/x86: dell-smbios-wmi: Fix chardev resource management
  platform/x86: dell-smbios: Pass device to callbacks
  platform/x86: dell-smbios-wmi: Replace global list with single item

 drivers/platform/x86/dell/dell-smbios-base.c |   6 +-
 drivers/platform/x86/dell/dell-smbios-smm.c  |   8 +-
 drivers/platform/x86/dell/dell-smbios-wmi.c  | 101 +++++++++----------
 drivers/platform/x86/dell/dell-smbios.h      |   4 +-
 4 files changed, 55 insertions(+), 64 deletions(-)

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2.39.5