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| author | Alan Stern <stern@rowland.harvard.edu> | 2006-12-06 20:32:37 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 08:39:22 -0800 |
| commit | a120586873d3d64de93bd6d593d237e131994e58 (patch) | |
| tree | ae284884e23268e867f748a2ab52353cf2390e89 /block | |
| parent | b30973f877fea1a3fb84e05599890fcc082a88e5 (diff) | |
| download | lwn-a120586873d3d64de93bd6d593d237e131994e58.tar.gz lwn-a120586873d3d64de93bd6d593d237e131994e58.zip | |
[PATCH] Allow NULL pointers in percpu_free
The patch (as824b) makes percpu_free() ignore NULL arguments, as one would
expect for a deallocation routine. (Note that free_percpu is #defined as
percpu_free in include/linux/percpu.h.) A few callers are updated to remove
now-unneeded tests for NULL. A few other callers already seem to assume
that passing a NULL pointer to percpu_free() is okay!
The patch also removes an unnecessary NULL check in percpu_depopulate().
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blktrace.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/block/blktrace.c b/block/blktrace.c index 74e02c04b2da..d3679dd1d220 100644 --- a/block/blktrace.c +++ b/block/blktrace.c @@ -394,8 +394,7 @@ err: if (bt) { if (bt->dropped_file) debugfs_remove(bt->dropped_file); - if (bt->sequence) - free_percpu(bt->sequence); + free_percpu(bt->sequence); if (bt->rchan) relay_close(bt->rchan); kfree(bt); |