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authorDan Williams <dan.j.williams@intel.com>2020-12-14 19:04:43 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-15 12:13:38 -0800
commit7d18dd75a8afc072aabc77f2a9c3df94cdc53f33 (patch)
treed5842f652bcb81fcace42995a553e4e308510c60
parent045ab8c9487ba099eade6578621e2af4a0d5ba0c (diff)
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device-dax/kmem: use struct_size()
Linus notes the kernel has had a nice helper for the 'size of struct with variable array member at the end' operation for a couple years now, use it. Link: http://lore.kernel.org/r/CAHk-=wgNTLbvAD8mNTvh+GQyapNWeX20PXhU_+frqEvVq4298w@mail.gmail.com Link: https://lkml.kernel.org/r/160288261564.3242821.6055291930923876456.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/dax/kmem.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dax/kmem.c b/drivers/dax/kmem.c
index b4368c5b6a0c..403ec42472d1 100644
--- a/drivers/dax/kmem.c
+++ b/drivers/dax/kmem.c
@@ -61,7 +61,7 @@ static int dev_dax_kmem_probe(struct dev_dax *dev_dax)
return -EINVAL;
}
- data = kzalloc(sizeof(*data) + sizeof(struct resource *) * dev_dax->nr_range, GFP_KERNEL);
+ data = kzalloc(struct_size(data, res, dev_dax->nr_range), GFP_KERNEL);
if (!data)
return -ENOMEM;