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fs-verity: Use struct_size() helper in enable_verity()

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Follow the best practice for allocating a variable-sized structure.

Signed-off-by: Zhang Jianhua <chris.zjh@huawei.com>
[ebiggers: adjusted commit message]
Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20220519022450.2434483-1-chris.zjh@huawei.com
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Zhang Jianhua 2022-05-19 10:24:50 +08:00 committed by Eric Biggers
parent b0487ede1f
commit e6af1bb077
1 changed files with 1 additions and 1 deletions
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fs/verity/enable.c
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@ -202,7 +202,7 @@ static int enable_verity(struct file *filp,
const struct fsverity_operations *vops = inode->i_sb->s_vop;
struct merkle_tree_params params = { };
struct fsverity_descriptor *desc;
size_t desc_size = sizeof(*desc) + arg->sig_size;
size_t desc_size = struct_size(desc, signature, arg->sig_size);
struct fsverity_info *vi;
int err;