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author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2019-06-04 18:16:16 -0500 |
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committer | Marc Zyngier <marc.zyngier@arm.com> | 2019-06-11 12:45:30 +0100 |
commit | b744c3bcff5a18ac1f355224eec1c453aab066a2 (patch) | |
tree | d764655e690ff91e9923e43437f1c4c8099e5c6e /Kbuild | |
parent | irqchip/irq-csky-mpintc: Remove unnecessary loop in interrupt handler (diff) | |
download | linux-dev-b744c3bcff5a18ac1f355224eec1c453aab066a2.tar.xz linux-dev-b744c3bcff5a18ac1f355224eec1c453aab066a2.zip |
irqchip/qcom: Use struct_size() in devm_kzalloc()
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct foo {
int stuff;
struct boo entry[];
};
size = sizeof(struct foo) + count * sizeof(struct boo);
instance = devm_kzalloc(dev, size, GFP_KERNEL);
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
instance = devm_kzalloc(dev, struct_size(instance, entry, count), GFP_KERNEL);
Notice that, in this case, variable alloc_sz is not necessary, hence it
is removed.
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'Kbuild')
0 files changed, 0 insertions, 0 deletions