btrfs: clean up NULL checks in qgroup_unreserve_range()

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Smatch complains that this code dereferences "entry" before checking
whether it's NULL on the next line.  Fortunately, rb_entry() will never
return NULL so it doesn't cause a problem.  We can clean up the NULL
checking a bit to silence the warning and make the code more clear.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Dan Carpenter 2020-10-23 14:26:33 +03:00 • committed by David Sterba

parent fca3a45d08

commit f07728d541

1 changed files with 4 additions and 8 deletions

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fs/btrfs/qgroup.c

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