Re: fscache: bug report: dereferencing before checking

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Dan Carpenter <error27@xxxxxxxxx> wrote:

> Can "page" be NULL here?

Hmmm...  Interesting question.  I'm not sure it can be NULL.

radix_tree_gang_lookup_tag() finds pages in the tree that have a particular
tag set, and returns the number of pages it has selected.  If that number is
!= 1, then I don't proceed with accessing the array.

So I think the tests of page later are unnecessary.


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