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Commit75b4703329("btrfs: raid56: migrate recovery and scrub recovery path to use error_bitmap") introduced an uninitialized return variable. This can be caught by gcc 12.1 by -Wmaybe-uninitialized: CC [M] fs/btrfs/raid56.o fs/btrfs/raid56.c: In function ‘scrub_rbio’: fs/btrfs/raid56.c:2801:15: warning: ‘ret’ may be used uninitialized [-Wmaybe-uninitialized] 2801 | ret = recover_scrub_rbio(rbio); | ^~~~~~~~~~~~~~~~~~~~~~~~ fs/btrfs/raid56.c:2649:13: note: ‘ret’ was declared here 2649 | int ret; The warning is disabled by default so we haven't caught that. Due to the bug the raid56 scrub fstests have been failing since the patch was merged, so initialize that. Fixes:75b4703329("btrfs: raid56: migrate recovery and scrub recovery path to use error_bitmap") Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.