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Richard Yao
a36b37d4de
If the `list_head()` returns NULL, we dereference it, right before we check to see if it returned NULL. We have defined two different pointers that both point to the same thing, which are `origin_head` and `origin_ds`. Almost everything uses `origin_ds`, so we switch them to use `origin_ds`. We also promote `origin_ds` to a const pointer so that the compiler verifies that nothing modifies it. Coverity complained about this. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Neal Gompa <ngompa@datto.com> Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Closes #13967