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author | Gustavo A. R. Silva | 2019-02-08 04:55:37 +0100 |
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committer | David S. Miller | 2019-02-09 07:57:28 +0100 |
commit | 9a00536c38e9df8b6d942316888990d849fe1d01 (patch) | |
tree | 0b404b7b4bce97378f80416bd31736aa9e6f8b28 /block/ioctl.c | |
parent | nfp: flower: cmsg: use struct_size() helper (diff) | |
download | kernel-qcow2-linux-9a00536c38e9df8b6d942316888990d849fe1d01.tar.gz kernel-qcow2-linux-9a00536c38e9df8b6d942316888990d849fe1d01.tar.xz kernel-qcow2-linux-9a00536c38e9df8b6d942316888990d849fe1d01.zip |
fm10k: use struct_size() in 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 = kzalloc(size, GFP_KERNEL);
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL);
Notice that, in this case, variable size 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: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'block/ioctl.c')
0 files changed, 0 insertions, 0 deletions