Commit 9c81c99b authored by Zhengyuan Liu's avatar Zhengyuan Liu Committed by Mike Snitzer
Browse files

dm crypt: use struct_size() when allocating encryption context 



Use struct_size() to avoid open-coded equivalent that is prone to a type
mistake.

Signed-off-by: default avatarZhengyuan Liu <liuzhengyuan@kylinos.cn>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
parent 5f1c56b3

drivers/md/dm-crypt.c

+1 −1
Original line number Diff line number Diff line
@@ -2699,7 +2699,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) 
		return -EINVAL;

	}



	cc = kzalloc(sizeof(*cc) + key_size * sizeof(u8), GFP_KERNEL);

	cc = kzalloc(struct_size(cc, key, key_size), GFP_KERNEL);

	if (!cc) {

		ti->error = "Cannot allocate encryption context";

		return -ENOMEM;