567 			 char __user *buffer,  in keyctl_describe_key()  argument
614 	if (buffer && buflen >= ret) {  in keyctl_describe_key()
615 		if (copy_to_user(buffer, infobuf, infolen) != 0 ||  in keyctl_describe_key()
616 		    copy_to_user(buffer + infolen, key->description,  in keyctl_describe_key()
732 long keyctl_read_key(key_serial_t keyid, char __user *buffer, size_t buflen)  in keyctl_read_key()  argument
778 			ret = key->type->read(key, buffer, buflen);  in keyctl_read_key()
1013 static long copy_from_user_iovec(void *buffer, const struct iovec *iov,  in copy_from_user_iovec()  argument
1017 		if (copy_from_user(buffer, iov->iov_base, iov->iov_len) != 0)  in copy_from_user_iovec()
1019 		buffer += iov->iov_len;  in copy_from_user_iovec()
1433 			 char __user *buffer,  in keyctl_get_security()  argument
1464 		if (buffer && buflen > 0 &&  in keyctl_get_security()
1465 		    copy_to_user(buffer, "", 1) != 0)  in keyctl_get_security()
1469 		if (buffer && buflen > 0) {  in keyctl_get_security()
1473 			if (copy_to_user(buffer, context, buflen) != 0)  in keyctl_get_security()