crypto: essiv - Replace memcpy() + NUL-termination with strscpy()

Use strscpy() to copy the NUL-terminated string 'p' to the destination
buffer instead of using memcpy() followed by a manual NUL-termination.

No functional changes intended.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Author: toblux

crypto/essiv.c

@@ -405,8 +405,7 @@ static bool parse_cipher_name(char *essiv_cipher_name, const char *cra_name)
 	if (len >= CRYPTO_MAX_ALG_NAME)
 		return false;
 
-	memcpy(essiv_cipher_name, p, len);
-	essiv_cipher_name[len] = '\0';
+	strscpy(essiv_cipher_name, p, len + 1);
 	return true;
 }