Merge tag 'for-linus-7.1-2' of https://github.com/cminyard/linux-ipmiHEADmaster

Pull IPMI fixes from Corey Minyard:
 "Fix a number of issues that came up recently

  The first two fixes are workarounds for buggy IPMI hardware. The
  hardware says it has data for the IPMI driver to read constantly, so
  the driver reads the data constantly, causing any new requests to be
  blocked.

  The first fix was to check for invalid data right when the data was
  read from the device and stop the operation there (there was a later
  check for invalid data, but it could not stop the operation at that
  point). It turned out the device was providing good data, so that
  didn't fix the issue, but it's still a good check.

  The second fix stops fetching this data after a few fetches and allows
  other operations to occur. The driver won't work very well, but at
  least it won't wedge. This seems to fix the issue.

  The third issue is a problem I spotted while working on the previous
  issue where if a certain memory allocation failed the driver would
  stop working.

  The fourth issue is a problem was a missing set to NULL on a PTR_ERR()
  return, introduced in the previous series for 7.1"

* tag 'for-linus-7.1-2' of https://github.com/cminyard/linux-ipmi:
  ipmi:ssif: NULL thread on error
  ipmi:si: Return state to normal if message allocation fails
  ipmi: Add limits to event and receive message requests
  ipmi: Check event message buffer response for bad data

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