[PATCH v2 22/28] fs/squashfs: sqfs_close/sqfs_read_sblk: set ctxt.sblk to NULL after free

[Tom Rini]

On Tue, Nov 03, 2020 at 12:11:20PM +0100, Richard Genoud wrote:

> This will prevent a double free error if sqfs_close() is called twice.
> 
> Signed-off-by: Richard Genoud <richard.genoud at posteo.net>

This change causes the test.py squashfs tests to fail.  I am unsure if
the problem is with the tests or this exposing further problems in the
code.

-- 
Tom
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